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GHSA-9qwg-crg9-m2vc openssl

Fix: sfackler/rust-openssl#1854

GHSA-9qwg-crg9-m2vc is a security vulnerability in openssl. A fix is available for openssl — see the affected versions and patch details below.

`openssl` `SubjectAlternativeName` and `ExtendedKeyUsage::other` allow arbitrary file read

Also known asRUSTSEC-2023-0023
Published
Mar 24, 2023
Updated
Nov 8, 2023
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 8, 2023 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🦀openssl

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

Description

SubjectAlternativeName and ExtendedKeyUsage arguments were parsed using the OpenSSL function X509V3_EXT_nconf. This function parses all input using an OpenSSL mini-language which can perform arbitrary file reads.

Thanks to David Benjamin (Google) for reporting this issue.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🦀crates.ioopenssl0.9.7&&< 0.10.480.10.48cargo update -p openssl --precise 0.10.48

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openssl, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update openssl to 0.10.48 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9qwg-crg9-m2vc is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-9qwg-crg9-m2vc can be triaged on real exposure rather than presence alone.

Tailored to GHSA-9qwg-crg9-m2vc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

`SubjectAlternativeName` and `ExtendedKeyUsage` arguments were parsed using the OpenSSL function `X509V3_EXT_nconf`. This function parses all input using an OpenSSL mini-language which can perform arbitrary file reads. Thanks to David Benjamin (Google) for reporting this issue.
O3 Security · Impact-Aware SCA

Is GHSA-9qwg-crg9-m2vc in your dependencies?

O3 Security finds GHSA-9qwg-crg9-m2vc across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-9qwg-crg9-m2vc: openssl | O3 Security