[Security] Bump excon from 0.62.0 to 0.76.0

[dependabot-preview]

Bumps excon from 0.62.0 to 0.76.0. This update includes security fixes.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

Race condition when using persistent connections 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.

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

Patched versions: >= 0.71.0 Unaffected versions: none

Sourced from The GitHub Security Advisory Database.

Low severity vulnerability that affects excon

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:

• Open an issue in excon/issues
• Email us at [email protected]

Affected versions: < 0.71.0

Changelog

Sourced from excon's changelog.

0.76.0 2020-07-27

remove AddTrust bundled cert hack (no longer needed) update bundled certs add support for ssl_verify_hostname parameter use buffered reads for Excon::Socket.readline

0.75.0 2020-06-17

explicitly require ipaddr

0.74.0 2020-06-12

add ipv6 support to no-proxy handling comment out add trust cert from bundle (due to expiry)

0.73.0 2020-03-17

add request/response data to proxy errors

0.72.0 2020-01-27

update bundled certificates

0.71.1 2019-12-18

fix frozen chunks through dup prior to binary_encode

0.71.0 2019-12-12

fix for leftover data with interrupted persistent connections

0.70.0 2019-12-02

Update bundled certificates

0.69.1 2019-11-21

Fix mistake in proxy connection error handling

Commits

• 8e351c9 v0.76.0
• 530e960 remove addtrust cert hack
• b0d0f42 update bundled certs
• c838a28 Merge pull request #722 from cosmo0920/support-verify-hostname-parameter-on-s...
• fa3ec51 Support ssl_verify_hostname parameter to use OpenSSL::SSL::SSLContext#verify_...
• bd13540 update certs
• 13ac7b4 Merge pull request #720 from kryzthov-stripe/kryzthov/readline-fix
• 251488a Excon::Socket.readline to use buffered reads
• 9c60f23 v0.75.0
• 5607159 Merge pull request #719 from marcotc/require-ipaddr
• Additional commits viewable in compare view

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