Bug 1428872 - tor: Integer underflow when comparing malformed tor versions
Summary: tor: Integer underflow when comparing malformed tor versions
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1428873 1428874 1428875 1428876
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-03-03 14:38 UTC by Andrej Nemec
Modified: 2020-11-05 10:32 UTC (History)
3 users (show)

Fixed In Version: tor 0.2.9.10, tor 0.3.0.4
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Clone Of:
Environment:
Last Closed: 2017-05-17 07:18:50 UTC
Embargoed:

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Description Andrej Nemec 2017-03-03 14:38:43 UTC 
An integer overflow vulnerability was found in Tor. The application could crash while comparing malformed Tor versions when built with --enable-expensive-hardening.

Upstream bug:

https://trac.torproject.org/projects/tor/ticket/21278

Upstream patches:

https://gitweb.torproject.org/tor.git/commit/?id=a0ef3cf0880e3cd343977b3fcbd0a2e7572f0cb4
https://gitweb.torproject.org/tor.git/commit/?id=194e31057fbf07d6bdf4b62d26e1a9db334e5f1c
Related:
https://gitweb.torproject.org/tor.git/commit/?id=1afc2ed956a35b40dfd1d207652af5b50c295da7
Extra fix:
https://gitweb.torproject.org/tor.git/commit/?id=02e05bd74dbec614397b696cfcda6525562a4675
Comment 1 Andrej Nemec 2017-03-03 14:39:48 UTC 
Created tor tracking bugs for this issue:

Affects: epel-5 [bug 1428873]
Affects: epel-6 [bug 1428874]
Affects: epel-7 [bug 1428875]
Affects: fedora-all [bug 1428876]
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