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CVE-2023-6779
high
CVSS 8.2
Vulnerability in gnu (CVE-2023-6779)
Summary
vulnerability in gnu (CVE-2023-6779). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2023-6779** has been found in gnu.
Risk of unauthorized operations or information disclosure. CVSS score: 8.2/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "gnu CVE-2023-6779" on the vendor's site.
CVE-2023-6779 (gnu) — CWE-122 / CVSS v3 8.2
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-122) exists in gnu.
📍 Affected scope
gnu — .
🔥 Severity
Severity: High (CVSS 8.2/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'gnu' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'gnu' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `gnu` を grep し、稼働しているサービス・バージョンを把握する。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
References
- advisory af854a3a-2127-422b-91ae-364da2661108
- mailing af854a3a-2127-422b-91ae-364da2661108
- mailing af854a3a-2127-422b-91ae-364da2661108
- web http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
- web http://seclists.org/fulldisclosure/2024/Feb/3
- web https://access.redhat.com/security/cve/CVE-2023-6779
- web https://bugzilla.redhat.com/show_bug.cgi?id=2254395
- web https://security.gentoo.org/glsa/202402-01
- web https://www.openwall.com/lists/oss-security/2024/01/30/6
- web https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt
- web https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- web https://nvd.nist.gov/vuln/detail/CVE-2023-6779
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ
- web https://security.netapp.com/advisory/ntap-20240223-0006
- web https://github.com/advisories/GHSA-p5vr-h433-qhqr