Buffer overflow in Qemu
CVE-2018-11806
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Qemu
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Eus — versions 7.5, 7.6, 7.7
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6, 7.7
- Red Hat Enterprise Linux Server Tus — versions 7.6, 7.7
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2018:2762 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/104400 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3826-1/ (vendor-advisory, Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2018/06/07/1 (mailing-list, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.zerodayinitiative.com/advisories/ZDI-18-567/ (VDB Entry, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2462 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2822 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2887 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-11806?
- CVE-2018-11806 is a high-severity vulnerability in Qemu, classified under Out-of-bounds Write. CVSS score: 8.2/10. Published 2018-06-13.
- How severe is CVE-2018-11806?
- High severity. CVSS v3 base score is 8.2 out of 10.