GHSA-6gc3-crp7-25w5

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Source
https://github.com/advisories/GHSA-6gc3-crp7-25w5
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-6gc3-crp7-25w5/GHSA-6gc3-crp7-25w5.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-6gc3-crp7-25w5
Aliases
Published
2023-03-02T23:12:47Z
Modified
2024-05-20T21:49:09Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
gosaml2 vulnerable to Denial Of Service Via Deflate Decompression Bomb
Details

Impact

SAML Service Providers using this library for SAML authentication support are likely susceptible to Denial of Service attacks. A bug in this library enables attackers to craft a deflate-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process being killed.

Mitigation

The maximum compression ratio achievable with deflate is 1032:1, so by limiting the size of bodies passed to gosaml2, limiting the rate and concurrency of calls, and ensuring that lots of memory is available to the process it may be possible to help Go's garbage collector "keep up".

Implementors are encouraged not to rely on this.

Patches

This issue is addressed in v0.9.0

References

Affected packages

Go / github.com/russellhaering/gosaml2

Package

Name
github.com/russellhaering/gosaml2
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Purl
pkg:golang/github.com/russellhaering/gosaml2

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.0