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MGASA-2023-0285
Vulnerability in firefox (MGASA-2023-0285)
Summary
vulnerability in firefox (MGASA-2023-0285). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `115.3.1-1.mga9` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **MGASA-2023-0285** has been found in firefox.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade firefox to **115.3.1-1.mga9** or later.
If unsure, ask your IT team or search "firefox MGASA-2023-0285" on the vendor's site.
MGASA-2023-0285 (firefox) —
Patched: `115.3.1-1.mga9` — 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.
❓ What is the problem
**A vulnerability** (unclassified) exists in firefox.
📍 Affected scope
firefox — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **115.3.1-1.mga9**.
🛡️ 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 'firefox' .` 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 'firefox' . | 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 `firefox` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade firefox to 115.3.1-1.mga9ステージング環境で 115.3.1-1.mga9 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と、Step 3 で見つけた異常検知の続報チェックを含めること。
-
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。
Affected packages
Mageia:9
firefox
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"115.3.1-1.mga9"}]}]
Mageia:9
firefox-l10n
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"115.3.1-1.mga9"}]}]
Mageia:9
thunderbird
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"115.3.1-1.mga9"}]}]
Mageia:9
thunderbird-l10n
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"115.3.1-1.mga9"}]}]
References
- advisory https://advisories.mageia.org/MGASA-2023-0285.html
- advisory https://www.cve.org/CVERecord?id=CVE-2023-5169
- advisory https://www.cve.org/CVERecord?id=CVE-2023-5171
- advisory https://www.cve.org/CVERecord?id=CVE-2023-5176
- advisory https://www.cve.org/CVERecord?id=CVE-2023-5217
- advisory https://www.mozilla.org/en-US/security/advisories/mfsa2023-42/
- advisory https://www.mozilla.org/en-US/security/advisories/mfsa2023-43/
- advisory https://www.mozilla.org/en-US/security/advisories/mfsa2023-44/
- report https://bugs.mageia.org/show_bug.cgi?id=32337
- web https://www.mozilla.org/en-US/firefox/115.3.0/releasenotes/
- web https://www.thunderbird.net/en-US/thunderbird/115.3.0/releasenotes/
- web https://www.mozilla.org/en-US/firefox/115.3.1/releasenotes/