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Mozilla » Firefox Esr : Security Vulnerabilities

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2021-38501 Mem. Corr. 2021-11-03 2021-11-04
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
2 CVE-2021-38500 Mem. Corr. 2021-11-03 2021-11-04
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
3 CVE-2021-38498 416 Mem. Corr. 2021-11-03 2021-11-04
5.0
None Remote Low Not required None None Partial
During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
4 CVE-2021-38497 346 2021-11-03 2021-11-04
4.3
None Remote Medium Not required None Partial None
Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
5 CVE-2021-38496 416 Mem. Corr. 2021-11-03 2021-11-04
6.8
None Remote Medium Not required Partial Partial Partial
During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
6 CVE-2021-38495 119 Overflow Mem. Corr. 2021-11-03 2021-11-04
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.1 and Firefox ESR < 91.1.
7 CVE-2021-38493 119 Overflow Mem. Corr. 2021-11-03 2021-11-04
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92.
8 CVE-2021-29989 119 Overflow Mem. Corr. 2021-08-17 2021-08-25
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.13, Firefox ESR < 78.13, and Firefox < 91.
9 CVE-2021-29988 436 Mem. Corr. 2021-08-17 2021-08-25
6.8
None Remote Medium Not required Partial Partial Partial
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
10 CVE-2021-29985 416 Mem. Corr. 2021-08-17 2021-08-25
6.8
None Remote Medium Not required Partial Partial Partial
A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
11 CVE-2021-29984 Mem. Corr. 2021-08-17 2021-08-25
6.8
None Remote Medium Not required Partial Partial Partial
Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
12 CVE-2021-29980 909 Mem. Corr. 2021-08-17 2021-08-25
6.8
None Remote Medium Not required Partial Partial Partial
Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
13 CVE-2021-29976 787 Mem. Corr. 2021-08-05 2021-08-12
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
14 CVE-2021-29970 416 Mem. Corr. 2021-08-05 2021-08-12
5.1
None Remote High Not required Partial Partial Partial
A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
15 CVE-2021-29967 119 Overflow Mem. Corr. 2021-06-24 2021-06-25
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 88 and Firefox ESR 78.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11.
16 CVE-2021-29955 74 Exec Code Bypass 2021-06-24 2021-06-30
2.6
None Remote High Not required Partial None None
A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.
17 CVE-2021-29946 190 Overflow Bypass 2021-06-24 2021-06-25
6.8
None Remote Medium Not required Partial Partial Partial
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
18 CVE-2021-29945 682 2021-06-24 2021-06-30
4.3
None Remote Medium Not required None None Partial
The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
19 CVE-2021-24002 88 2021-06-24 2021-07-02
6.8
None Remote Medium Not required Partial Partial Partial
When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
20 CVE-2021-23999 269 2021-06-24 2021-07-02
6.8
None Remote Medium Not required Partial Partial Partial
If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
21 CVE-2021-23998 345 2021-06-24 2021-07-02
4.3
None Remote Medium Not required None Partial None
Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
22 CVE-2021-23995 672 2021-06-24 2021-07-02
5.1
None Remote High Not required Partial Partial Partial
When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
23 CVE-2021-23994 909 Mem. Corr. 2021-06-24 2021-07-02
6.8
None Remote Medium Not required Partial Partial Partial
A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
24 CVE-2021-23987 119 Overflow Mem. Corr. 2021-03-31 2021-08-06
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
25 CVE-2021-23984 290 2021-03-31 2021-08-06
4.3
None Remote Medium Not required None Partial None
A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
26 CVE-2021-23982 326 2021-03-31 2021-08-06
4.3
None Remote Medium Not required None Partial None
Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
27 CVE-2021-23981 119 Overflow Mem. Corr. +Info 2021-03-31 2021-08-06
5.8
None Remote Medium Not required Partial None Partial
A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
28 CVE-2021-23978 Mem. Corr. 2021-02-26 2021-05-01
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
29 CVE-2021-23973 209 2021-02-26 2021-05-01
4.3
None Remote Medium Not required Partial None None
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
30 CVE-2021-23969 2021-02-26 2021-05-01
4.3
None Remote Medium Not required Partial None None
As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
31 CVE-2021-23968 209 +Info 2021-02-26 2021-05-01
4.3
None Remote Medium Not required Partial None None
If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
32 CVE-2021-23964 119 Overflow Mem. Corr. 2021-02-26 2021-03-04
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
33 CVE-2021-23960 2021-02-26 2021-03-03
6.8
None Remote Medium Not required Partial Partial Partial
Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
34 CVE-2021-23954 843 Mem. Corr. 2021-02-26 2021-03-03
6.8
None Remote Medium Not required Partial Partial Partial
Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
35 CVE-2021-23953 +Info 2021-02-26 2021-03-03
4.3
None Remote Medium Not required Partial None None
If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
36 CVE-2020-35113 787 Mem. Corr. 2021-01-07 2021-01-12
6.8
None Remote Medium Not required Partial Partial Partial
Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
37 CVE-2020-35111 2021-01-07 2021-01-12
4.3
None Remote Medium Not required Partial None None
When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening View Source could have inadvertently leaked their IP address. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
38 CVE-2020-26978 2021-01-07 2021-01-12
5.8
None Remote Medium Not required Partial Partial None
Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
39 CVE-2020-26974 787 Mem. Corr. 2021-01-07 2021-01-12
6.8
None Remote Medium Not required Partial Partial Partial
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
40 CVE-2020-26973 Bypass 2021-01-07 2021-01-11
6.8
None Remote Medium Not required Partial Partial Partial
Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
41 CVE-2020-26971 787 Overflow 2021-01-07 2021-01-11
6.8
None Remote Medium Not required Partial Partial Partial
Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
42 CVE-2020-26968 787 Mem. Corr. 2020-12-09 2020-12-10
9.3
None Remote Medium Not required Complete Complete Complete
Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
43 CVE-2020-26965 212 2020-12-09 2020-12-10
4.3
None Remote Medium Not required Partial None None
Some websites have a feature "Show Password" where clicking a button will change a password field into a textbook field, revealing the typed password. If, when using a software keyboard that remembers user input, a user typed their password and used that feature, the type of the password field was changed, resulting in a keyboard layout change and the possibility for the software keyboard to remember the typed password. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
44 CVE-2020-26961 2020-12-09 2020-12-10
4.3
None Remote Medium Not required None Partial None
When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding attack. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
45 CVE-2020-26960 416 2020-12-09 2020-12-10
9.3
None Remote Medium Not required Complete Complete Complete
If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
46 CVE-2020-26959 416 Mem. Corr. 2020-12-09 2020-12-10
6.8
None Remote Medium Not required Partial Partial Partial
During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
47 CVE-2020-26958 79 XSS Bypass 2020-12-09 2020-12-10
4.3
None Remote Medium Not required None Partial None
Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and cached through a ServiceWorker. This could lead to a cross-site script inclusion vulnerability, or a Content Security Policy bypass. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
48 CVE-2020-26956 79 XSS 2020-12-09 2020-12-10
4.3
None Remote Medium Not required None Partial None
In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
49 CVE-2020-26953 1021 2020-12-09 2020-12-10
4.3
None Remote Medium Not required None Partial None
It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
50 CVE-2020-26951 79 XSS Bypass 2020-12-09 2020-12-09
4.3
None Remote Medium Not required None Partial None
A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
Total number of vulnerabilities : 758   Page : 1 (This Page)2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
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