Vulnerability in imagemagick
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-2020-27754 has been found in imagemagick.
Risk of unauthorized operations or information disclosure.
What to do: upgrade imagemagick to 8:6.9.11.24+dfsg-1 or later.
If unsure, ask your IT team or search "imagemagick DEBIAN-CVE-2020-27754" on the vendor's site.
DEBIAN-CVE-2020-27754 (imagemagick)
Attack vector: local / unauthenticated
Patched: 8:6.9.11.24+dfsg-1 — 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 imagemagick.
Check the vendor advisory for the affected versions of imagemagick.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 8:6.9.11.24+dfsg-1.
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 'imagemagick' . 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 'imagemagick' . | 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
imagemagick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 imagemagick to 8:6.9.11.24+dfsg-1ステージング環境で 8:6.9.11.24+dfsg-1 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 | imagemagick |
< 8:6.9.11.24+dfsg-1 |
8:6.9.11.24+dfsg-1 |
| Debian:13 | imagemagick |
< 8:6.9.11.24+dfsg-1 |
8:6.9.11.24+dfsg-1 |
| Debian:14 | imagemagick |
< 8:6.9.11.24+dfsg-1 |
8:6.9.11.24+dfsg-1 |
Original description The description as published by the source.
In IntensityCompare() of /magick/quantize.c, there are calls to PixelPacketIntensity() which could return overflowed values to the caller when ImageMagick processes a crafted input file. To mitigate this, the patch introduces and uses the ConstrainPixelIntensity() function, which forces the pixel intensities to be within the proper bounds in the event of an overflow. This flaw affects ImageMagick versions prior to 6.9.10-69 and 7.0.8-69.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory security-tracker.debian.org