Vulnerability in github.com/sylabs/sif (CVE-2021-29499)
Summary
Vulnerability in github.com/sylabs/sif (CVE-2021-29499). Data can be tampered with by attackers. Mitigation: upgrade to 1.2.3 or later.
Original description
The description as published by the source.
Impact
The siftool new command and func siftool.New() produce predictable UUID identifiers due to insecure randomness in the version of the github.com/satori/go.uuid module used as a dependency.
Patches
A patch is available in version >= v1.2.3 of the module. Users are encouraged to upgrade.
The patch is commit https://github.com/sylabs/sif/commit/193962882122abf85ff5f5bcc86404933e71c07d
Workarounds
Users passing CreateInfo struct should ensure the ID field is generated using a version of github.com/satori/go.uuid that is not vulnerable to this issue. Unfortunately, the latest tagged release is vulnerable to this issue. One way to obtain a non-vulnerable version is:
go get github.com/satori/go.uuid@75cca531ea763666bc46e531da3b4c3b95f64557
References
For more information
If you have any questions or comments about this advisory:
- Open an issue in github.com/sylabs/sif
- Email us at security@sylabs.io
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-2021-29499 has been found in github.com/sylabs/sif.
Data can be tampered with by attackers.
What to do: upgrade github.com/sylabs/sif to 1.2.3 or later.
If unsure, ask your IT team or search "github.com/sylabs/sif CVE-2021-29499" on the vendor's site.
CVE-2021-29499 (github.com/sylabs/sif) — CWE-330
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 1.2.3 — 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-330) exists in github.com/sylabs/sif.
Check the vendor advisory for the affected versions of github.com/sylabs/sif.
Severity: ?. Data can be tampered with by attackers.
Update to 1.2.3.
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 'github.com/sylabs/sif' . 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 'github.com/sylabs/sif' . | 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
github.com/sylabs/sif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 github.com/sylabs/sif to 1.2.3ステージング環境で 1.2.3 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-2021-29499 singularity-container
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web github.com