Vulnerability in kamadak-exif (CVE-2021-21235)
Summary
Vulnerability in kamadak-exif (CVE-2021-21235). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 0.5.3 or later.
Original description
The description as published by the source.
kamadak-exif is an exif parsing library written in pure Rust. In kamadak-exif version 0.5.2, there is an infinite loop in parsing crafted PNG files. Specifically, reader::read_from_container can cause an infinite loop when a crafted PNG file is given. This is fixed in version 0.5.3. No workaround is available. Applications that do not pass files with the PNG signature to Reader::read_from_container are not affected.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
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 CVE-2021-21235 has been found in kamadak-exif.
Risk of unauthorized operations or information disclosure.
What to do: upgrade kamadak-exif to 0.5.3 or later.
If unsure, ask your IT team or search "kamadak-exif CVE-2021-21235" on the vendor's site.
CVE-2021-21235 (kamadak-exif) — CWE-400
Attack vector: remote (network-reachable) / unauthenticated
Patched: 0.5.3 — 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 (CWE-400) exists in kamadak-exif.
Check the vendor advisory for the affected versions of kamadak-exif.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 0.5.3.
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 'kamadak-exif' . 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
-
1Identify exposure identify
grep -r 'kamadak-exif' . | 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
kamadak-exifを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade kamadak-exif to 0.5.3ステージング環境で 0.5.3 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。
-
3Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2021-21235 rust-kamadak-exif
References
- advisory github.com
- advisory nvd.nist.gov
- advisory crates.io
- package github.com
- patch github.com
- web github.com
- web rustsec.org