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CVE-2018-11806
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
AI summary snake-internal / snake-template-v1
A weakness called CVE-2018-11806 was discovered in the affected product.
Severity is Info. Low severity or not yet rated.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "the product CVE-2018-11806".
CVE-2018-11806 (the affected product). Severity: Info.
Response plan:
1. Check the vendor advisory for affected versions and the patched release.
2. If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
3. If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
4. Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
❓ What is the problem
A weakness (CVE-2018-11806) in the affected product. A serious software flaw has been identified.
📍 Affected scope
Target versions of the affected product (see vendor advisory). If running in production, identify exposure immediately.
🔥 Severity
Severity: Info. Low severity or not yet rated.
🔧 How to fix
Update to the patched release as listed in the vendor advisory.
🛡️ Workaround
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
🔍 Detection
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
References
- advisory http://www.openwall.com/lists/oss-security/2018/06/07/1
- advisory http://www.securityfocus.com/bid/104400
- advisory https://access.redhat.com/errata/RHSA-2018:2462
- advisory https://access.redhat.com/errata/RHSA-2018:2762
- advisory https://access.redhat.com/errata/RHSA-2018:2822
- advisory https://access.redhat.com/errata/RHSA-2018:2887
- advisory https://access.redhat.com/errata/RHSA-2019:2892
- advisory https://lists.debian.org/debian-lts-announce/2019/05/msg00010.html
- advisory https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html
- advisory https://seclists.org/bugtraq/2019/May/76
- advisory https://usn.ubuntu.com/3826-1/
- advisory https://www.debian.org/security/2019/dsa-4454
- advisory https://www.zerodayinitiative.com/advisories/ZDI-18-567/
- patch https://bugzilla.redhat.com/show_bug.cgi?id=1586245