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CVE-2019-6109
medium
CVSS 6.8
Vulnerability in c (CVE-2019-6109)
Summary
vulnerability in c (CVE-2019-6109). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2019-6109** has been found in c.
Confidential information can be exposed externally. CVSS score: 6.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "c CVE-2019-6109" on the vendor's site.
CVE-2019-6109 (c) — CWE-116 / CVSS v3 6.8
Attack vector: remote (network-reachable) / unauthenticated
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-116) exists in c.
📍 Affected scope
c — .
🔥 Severity
Severity: Medium (CVSS 6.8/10). Confidential information can be exposed externally
🔧 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 'c' .` 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 'c' . | 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 `c` を grep し、稼働しているサービス・バージョンを把握する。
-
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
- advisory af854a3a-2127-422b-91ae-364da2661108
- web http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html
- web https://access.redhat.com/errata/RHSA-2019:3702
- web https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- web https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c
- web https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c
- web https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html
- web af854a3a-2127-422b-91ae-364da2661108
- web https://security.gentoo.org/glsa/201903-16
- web https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
- web https://www.debian.org/security/2019/dsa-4387
- web https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- web https://nvd.nist.gov/vuln/detail/CVE-2019-6109
- web https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G
- web https://security.netapp.com/advisory/ntap-20190213-0001
- web https://usn.ubuntu.com/3885-1
- web https://github.com/advisories/GHSA-2pqm-q853-jfvf