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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXE1OGctNDU1cC04dnc5

In RubyGem excon, interrupted Persistent Connections May Leak Response Data

Impact

There was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this.

Patches

The problem has been patched in 0.71.0, users should upgrade to this or a newer version (if one exists).

Workarounds

Users can workaround the problem by disabling persistent connections, though this may cause performance implications.

References

See the patch for further details.

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-q58g-455p-8vw9
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXE1OGctNDU1cC04dnc5
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 5 years ago
Updated: over 1 year ago


CVSS Score: 5.8
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

Identifiers: GHSA-q58g-455p-8vw9, CVE-2019-16779
References: Repository: https://github.com/excon/excon
Blast Radius: 28.1

Affected Packages

rubygems:excon
Dependent packages: 524
Dependent repositories: 69,352
Downloads: 523,246,315 total
Affected Version Ranges: < 0.71.0
Fixed in: 0.71.0
All affected versions: 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 0.0.7, 0.0.8, 0.0.10, 0.0.11, 0.0.12, 0.0.13, 0.0.14, 0.0.15, 0.0.16, 0.0.17, 0.0.18, 0.0.19, 0.0.20, 0.0.21, 0.0.22, 0.0.23, 0.0.24, 0.0.25, 0.0.26, 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.6, 0.2.7, 0.2.8, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.3.7, 0.3.8, 0.4.0, 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 0.5.8, 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.6.4, 0.6.5, 0.6.6, 0.7.0, 0.7.1, 0.7.2, 0.7.3, 0.7.4, 0.7.5, 0.7.6, 0.7.7, 0.7.8, 0.7.9, 0.7.10, 0.7.11, 0.7.12, 0.8.0, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.9.4, 0.9.5, 0.9.6, 0.10.0, 0.10.1, 0.11.0, 0.12.0, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.13.4, 0.14.0, 0.14.1, 0.14.2, 0.14.3, 0.15.0, 0.15.1, 0.15.2, 0.15.3, 0.15.4, 0.15.5, 0.16.0, 0.16.1, 0.16.2, 0.16.3, 0.16.4, 0.16.5, 0.16.7, 0.16.8, 0.16.9, 0.16.10, 0.17.0, 0.18.0, 0.18.1, 0.18.2, 0.18.3, 0.18.4, 0.18.5, 0.19.0, 0.19.1, 0.19.2, 0.19.3, 0.19.4, 0.19.5, 0.20.0, 0.20.1, 0.21.0, 0.22.0, 0.22.1, 0.23.0, 0.24.0, 0.25.0, 0.25.1, 0.25.2, 0.25.3, 0.26.0, 0.27.0, 0.27.1, 0.27.2, 0.27.3, 0.27.4, 0.27.5, 0.27.6, 0.28.0, 0.29.0, 0.30.0, 0.31.0, 0.32.0, 0.32.1, 0.33.0, 0.34.0, 0.35.0, 0.36.0, 0.37.0, 0.38.0, 0.39.0, 0.39.1, 0.39.2, 0.39.3, 0.39.4, 0.39.5, 0.39.6, 0.40.0, 0.41.0, 0.42.0, 0.42.1, 0.43.0, 0.44.0, 0.44.1, 0.44.2, 0.44.3, 0.44.4, 0.45.0, 0.45.1, 0.45.2, 0.45.3, 0.45.4, 0.46.0, 0.47.0, 0.48.0, 0.49.0, 0.50.0, 0.50.1, 0.51.0, 0.52.0, 0.53.0, 0.54.0, 0.55.0, 0.56.0, 0.57.0, 0.57.1, 0.58.0, 0.59.0, 0.60.0, 0.61.0, 0.62.0, 0.63.0, 0.64.0, 0.65.0, 0.66.0, 0.67.0, 0.68.0, 0.69.0, 0.69.1, 0.70.0
All unaffected versions: 0.71.0, 0.71.1, 0.72.0, 0.73.0, 0.74.0, 0.75.0, 0.76.0, 0.78.0, 0.78.1, 0.79.0, 0.80.0, 0.80.1, 0.81.0, 0.82.0, 0.83.0, 0.84.0, 0.85.0, 0.86.0, 0.87.0, 0.88.0, 0.89.0, 0.90.0, 0.91.0, 0.92.0, 0.92.1, 0.92.2, 0.92.3, 0.92.4, 0.92.5, 0.93.0, 0.93.1, 0.94.0, 0.95.0, 0.96.0, 0.97.0, 0.97.1, 0.97.2, 0.98.0, 0.99.0, 0.100.0, 0.101.0, 0.102.0, 0.103.0, 0.104.0, 0.105.0, 0.106.0, 0.107.0, 0.108.0, 0.109.0, 0.110.0, 0.111.0, 0.112.0, 1.0.0, 1.1.0, 1.1.1, 1.2.0, 1.2.1