Vulnerability in xorg-server
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as DEBIAN-CVE-2024-21886 has been found in xorg-server.
Risk of unauthorized operations or information disclosure.
What to do: upgrade xorg-server to 2:1.20.11-1+deb11u11 or later.
If unsure, ask your IT team or search "xorg-server DEBIAN-CVE-2024-21886" on the vendor's site.
DEBIAN-CVE-2024-21886 (xorg-server)
Patched: 2:1.20.11-1+deb11u11 — apply immediately
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.
A vulnerability (unclassified) exists in xorg-server.
Check the vendor advisory for the affected versions of xorg-server.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 2:1.20.11-1+deb11u11.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'xorg-server' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1
Identify exposureidentify
grep -r 'xorg-server' . | 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
xorg-serverを grep し、稼働しているサービス・バージョンを把握する。 -
2
Apply patchpatch
Upgrade xorg-server to 2:1.20.11-1+deb11u11ステージング環境で 2:1.20.11-1+deb11u11 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3
Post-deployment verificationverify
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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
| Package | Affected → Fixed | |
|---|---|---|
| Debian:11xorg-server |
< 2:1.20.11-1+deb11u11→ 2:1.20.11-1+deb11u11 |
2:1.20.11-1+deb11u11 |
| Debian:12xorg-server |
< 2:21.1.7-3+deb12u5→ 2:21.1.7-3+deb12u5 |
2:21.1.7-3+deb12u5 |
| Debian:13xorg-server |
< 2:21.1.11-1→ 2:21.1.11-1 |
2:21.1.11-1 |
| Debian:14xorg-server |
< 2:21.1.11-1→ 2:21.1.11-1 |
2:21.1.11-1 |
| Debian:12xwayland |
All versions→ Not listed |
Not listed |
| Debian:13xwayland |
< 2:23.2.4-1→ 2:23.2.4-1 |
2:23.2.4-1 |
| Debian:14xwayland |
< 2:23.2.4-1→ 2:23.2.4-1 |
2:23.2.4-1 |
Original description The description as published by the source.
A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory security-tracker.debian.org