What’s Vulnerable › Vulnerabilities

CVE-2018-11806

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-06-13 · updated 2026-06-17
• Weakness: CWE-787

Description

m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
• Debian Linux: 8.0, 9.0
• QEMU: through 2.12.1
• RedHat Enterprise Linux Desktop: 6.0, 7.0
• RedHat Enterprise Linux Eus: 7.5, 7.6, 7.7
• RedHat Enterprise Linux Server: 6.0, 7.0
• RedHat Enterprise Linux Server Aus: 7.6, 7.7
• RedHat Enterprise Linux Server Tus: 7.6, 7.7
• RedHat Enterprise Linux Workstation: 6.0, 7.0
• OpenStack: 8, 9, 10, 12, 13
• RedHat Virtualization: 4.0

References

• http://www.openwall.com/lists/oss-security/2018/06/07/1
• http://www.securityfocus.com/bid/104400
• https://access.redhat.com/errata/RHSA-2018:2462
• https://access.redhat.com/errata/RHSA-2018:2762
• https://access.redhat.com/errata/RHSA-2018:2822
• https://access.redhat.com/errata/RHSA-2018:2887
• https://access.redhat.com/errata/RHSA-2019:2892
• https://bugzilla.redhat.com/show_bug.cgi?id=1586245
• https://lists.debian.org/debian-lts-announce/2019/05/msg00010.html
• https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html
• https://seclists.org/bugtraq/2019/May/76
• https://usn.ubuntu.com/3826-1/

Get alerted when CVE-2018-11806 or the next vulnerability affects your stack