Bug 1163889 (CVE-2020-8955)

Summary: VUL-0: CVE-2020-8955: weechat: denial of service in irc_mode_channel_update in plugins/irc/irc-mode.c
Product: [openSUSE] openSUSE Distribution Reporter: Robert Frohl <rfrohl>
Component: SecurityAssignee: Maximilian Trummer <opensuse>
Status: RESOLVED FIXED QA Contact: Security Team bot <security-team>
Severity: Normal    
Priority: P3 - Medium CC: Andreas.Stieger, mimi.vx, opensuse
Version: Leap 15.1   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/253020/
Whiteboard:
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description Robert Frohl 2020-02-17 12:24:06 UTC
rh#1803064

A vulnerability was found in irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a malformed IRC message 324 (channel mode).

Reference:

https://github.com/weechat/weechat/commit/6f4f147d8e86adf9ad34a8ffd7e7f1f23a7e74da
https://weechat.org/doc/security/

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1803064
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-8955
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-8955.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8955
https://github.com/weechat/weechat/commit/6f4f147d8e86adf9ad34a8ffd7e7f1f23a7e74da
https://weechat.org/doc/security/
Comment 1 Robert Frohl 2020-02-17 12:29:06 UTC
From the looks of it still missing in Leap and Tumbleweed.
Comment 2 Robert Frohl 2020-02-17 12:32:07 UTC
Upstream looks to me like there might be a version 2.7.1 incoming.
Comment 3 Swamp Workflow Management 2020-02-17 13:30:06 UTC
This is an autogenerated message for OBS integration:
This bug (1163889) was mentioned in
https://build.opensuse.org/request/show/774861 Factory / weechat
https://build.opensuse.org/request/show/774865 15.1+Backports:SLE-15+Backports:SLE-15-SP1 / weechat
Comment 4 Swamp Workflow Management 2020-02-27 17:18:55 UTC
openSUSE-SU-2020:0248-1: An update that fixes one vulnerability is now available.

Category: security (important)
Bug References: 1163889
CVE References: CVE-2020-8955
Sources used:
openSUSE Leap 15.1 (src):    weechat-2.1-lp151.3.3.1
openSUSE Backports SLE-15-SP1 (src):    weechat-2.1-bp151.4.3.1
openSUSE Backports SLE-15 (src):    weechat-2.1-bp150.3.3.1
Comment 5 Andreas Stieger 2022-03-14 16:21:12 UTC
done