`openssl` `SubjectAlternativeName` and `ExtendedKeyUsage::other` allow arbitrary file read
Priority LOW 38Published · Updated
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
`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.
Why it matters now
Fix Fixed openssl (crates.io): 0.10.48
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | openssl (crates.io) | 0.9.7 to before 0.10.48 | 0.10.48 | Patch available | GHSA-9qwg-crg9-m2vc |
- openssl (crates.io) Vendor— Affected 0.9.7 to before 0.10.48 Fixed in 0.10.48 Patch available GHSA-9qwg-crg9-m2vc
Remediation
- Fix · GHSA-9qwg-crg9-m2vc openssl (crates.io) Fixed in 0.10.48 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-9qwg-crg9-m2vc
References
Sources
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