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Vulnerability Details : CVE-2018-11806

m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
Publish Date : 2018-06-13 Last Update Date : 2021-08-04
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 787

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:2462: qemu-kvm security and bug fix update (Important) oval:com.redhat.rhsa:def:20182462 unix
RHSA-2018:2762: qemu-kvm-ma security update (Important) oval:com.redhat.rhsa:def:20182762 unix
RHSA-2019:2892: qemu-kvm security update (Important) oval:com.redhat.rhsa:def:20192892 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-2018-11806

# 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 Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
6 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
7 Application Qemu Qemu * * * * Version Details Vulnerabilities
8 OS Redhat Enterprise Linux Desktop 6.0 * * * Version Details Vulnerabilities
9 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Eus 7.5 * * * Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Eus 7.6 * * * Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Eus 7.7 * * * Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Server 6.0 * * * Version Details Vulnerabilities
14 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
15 OS Redhat Enterprise Linux Server Aus 7.6 * * * Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Server Aus 7.7 * * * Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Server Tus 7.6 * * * Version Details Vulnerabilities
18 OS Redhat Enterprise Linux Server Tus 7.7 * * * Version Details Vulnerabilities
19 OS Redhat Enterprise Linux Workstation 6.0 * * * Version Details Vulnerabilities
20 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities
21 Application Redhat Openstack 8 * * * Version Details Vulnerabilities
22 Application Redhat Openstack 9 * * * Version Details Vulnerabilities
23 Application Redhat Openstack 10 * * * Version Details Vulnerabilities
24 Application Redhat Openstack 12 * * * Version Details Vulnerabilities
25 Application Redhat Openstack 13 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Debian Debian Linux 2
Qemu Qemu 1
Redhat Enterprise Linux Desktop 2
Redhat Enterprise Linux Eus 3
Redhat Enterprise Linux Server 2
Redhat Enterprise Linux Server Aus 2
Redhat Enterprise Linux Server Tus 2
Redhat Enterprise Linux Workstation 2
Redhat Openstack 5

- References For CVE-2018-11806

http://www.securityfocus.com/bid/104400
BID 104400 QEMU CVE-2018-11806 Heap Buffer Overflow Vulnerability Release Date:2018-06-05
https://access.redhat.com/errata/RHSA-2018:2762
REDHAT RHSA-2018:2762
https://www.zerodayinitiative.com/advisories/ZDI-18-567/
https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html
MLIST [qemu-devel] 20180605 [PATCH 1/2] slirp: correct size computation while concatenating mbuf
https://www.debian.org/security/2019/dsa-4454
DEBIAN DSA-4454
https://seclists.org/bugtraq/2019/May/76
BUGTRAQ 20190531 [SECURITY] [DSA 4454-1] qemu security update
https://lists.debian.org/debian-lts-announce/2019/05/msg00010.html
MLIST [debian-lts-announce] 20190509 [SECURITY] [DLA 1781-1] qemu security update
https://access.redhat.com/errata/RHSA-2019:2892
REDHAT RHSA-2019:2892
https://bugzilla.redhat.com/show_bug.cgi?id=1586245 CONFIRM
https://access.redhat.com/errata/RHSA-2018:2887
REDHAT RHSA-2018:2887
https://usn.ubuntu.com/3826-1/
UBUNTU USN-3826-1
https://access.redhat.com/errata/RHSA-2018:2822
REDHAT RHSA-2018:2822
http://www.openwall.com/lists/oss-security/2018/06/07/1
MLIST [oss-security] 20180607 CVE-2018-11806 Qemu: slirp: heap buffer overflow while reassembling fragmented datagrams
https://access.redhat.com/errata/RHSA-2018:2462
REDHAT RHSA-2018:2462

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2018-11806

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


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