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CVE-2016-0777
medium
CVSS 6.5
Information Disclosure in c (CVE-2016-0777)
Summary
vulnerability in c (CVE-2016-0777). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2016-0777** has been found in c.
Confidential information can be exposed externally. CVSS score: 6.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "c CVE-2016-0777" on the vendor's site.
CVE-2016-0777 (c) — CWE-200 / CVSS v3 6.5
Attack vector: remote (network-reachable) / 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
**information disclosure** (CWE-200) exists in c.
📍 Affected scope
c — .
🔥 Severity
Severity: Medium (CVSS 6.5/10). 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 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10734
- advisory http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html
- advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176516.html
- advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175592.html
- advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175676.html
- advisory http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176349.html
- advisory http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00006.html
- advisory http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00007.html
- advisory http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00008.html
- advisory http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00009.html
- advisory http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00013.html
- advisory http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00014.html
- advisory http://packetstormsecurity.com/files/135273/Qualys-Security-Advisory-OpenSSH-Overflow-Leak.html
- advisory http://seclists.org/fulldisclosure/2016/Jan/44
- advisory http://www.debian.org/security/2016/dsa-3446
- advisory http://www.openssh.com/txt/release-7.1p2
- advisory http://www.openwall.com/lists/oss-security/2016/01/14/7
- advisory http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- advisory http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- advisory http://www.securityfocus.com/archive/1/537295/100/0/threaded
- advisory http://www.securityfocus.com/bid/80695
- advisory http://www.securitytracker.com/id/1034671
- advisory http://www.ubuntu.com/usn/USN-2869-1
- advisory https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/
- advisory https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/
- advisory https://bto.bluecoat.com/security-advisory/sa109
- advisory https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05247375
- advisory https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388
- advisory https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680
- advisory https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
- advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-16:07.openssh.asc
- advisory https://security.gentoo.org/glsa/201601-01
- advisory https://support.apple.com/HT206167
- web https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf