Vulnerability in flatpak
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-2019-10063 has been found in flatpak.
Successful exploitation can lead to full system takeover.
What to do: upgrade flatpak to 1.2.3-2 or later.
If unsure, ask your IT team or search "flatpak DEBIAN-CVE-2019-10063" on the vendor's site.
DEBIAN-CVE-2019-10063 (flatpak)
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 1.2.3-2 — 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 flatpak.
Check the vendor advisory for the affected versions of flatpak.
Severity: ?. Successful exploitation can lead to full system takeover.
Update to 1.2.3-2.
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 'flatpak' . 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 'flatpak' . | 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
flatpak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 flatpak to 1.2.3-2ステージング環境で 1.2.3-2 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
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Debian:12 | flatpak |
< 1.2.3-2 |
1.2.3-2 |
| Debian:13 | flatpak |
< 1.2.3-2 |
1.2.3-2 |
| Debian:14 | flatpak |
< 1.2.3-2 |
1.2.3-2 |
Original description The description as published by the source.
Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Flatpak versions since 0.8.1 address CVE-2017-5226 by using a seccomp filter to prevent sandboxed apps from using the TIOCSTI ioctl, which could otherwise be used to inject commands into the controlling terminal so that they would be executed outside the sandbox after the sandboxed app exits. This fix was incomplete: on 64-bit platforms, the seccomp filter could be bypassed by an ioctl request number that has TIOCSTI in its 32 least significant bits and an arbitrary nonzero value in its 32 most significant bits, which the Linux kernel would treat as equivalent to TIOCSTI.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory security-tracker.debian.org