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Vulnerability Details : CVE-2018-19854

An issue was discovered in the Linux kernel before 4.19.3. crypto_report_one() and related functions in crypto/crypto_user.c (the crypto user configuration API) do not fully initialize structures that are copied to userspace, potentially leaking sensitive memory to user programs. NOTE: this is a CVE-2013-2547 regression but with easier exploitability because the attacker does not need a capability (however, the system must have the CONFIG_CRYPTO_USER kconfig option).
Publish Date : 2018-12-04 Last Update Date : 2019-11-06
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- CVSS Scores & Vulnerability Types

CVSS Score
1.9
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:3309: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20193309 unix
RHSA-2019:3517: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20193517 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-19854

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 18.10 * * * Version Details Vulnerabilities
5 OS Linux Linux Kernel * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Linux Linux Kernel 1

- References For CVE-2018-19854

https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3
https://github.com/torvalds/linux/commit/f43f39958beb206b53292801e216d9b8a660f087
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087
https://usn.ubuntu.com/3872-1/
UBUNTU USN-3872-1
https://usn.ubuntu.com/3878-1/
UBUNTU USN-3878-1
https://usn.ubuntu.com/3878-2/
UBUNTU USN-3878-2
https://usn.ubuntu.com/3901-2/
UBUNTU USN-3901-2
https://usn.ubuntu.com/3901-1/
UBUNTU USN-3901-1
https://access.redhat.com/errata/RHSA-2019:3517
REDHAT RHSA-2019:3517
https://access.redhat.com/errata/RHSA-2019:3309
REDHAT RHSA-2019:3309

- Metasploit Modules Related To CVE-2018-19854

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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