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Bug 714086 (CVE-2020-9759, CVE-2020-9760)

Summary: <net-irc/weechat-2.7.1: Multiple vulnerabilities (CVE-2020-{9759,9760})
Product: Gentoo Security Reporter: Sam James <sam>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Severity: minor CC: gyakovlev
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
See Also:
Whiteboard: B3 [glsa+ cve]
Package list:
Runtime testing required: ---

Description Sam James archtester gentoo-dev Security 2020-03-23 16:53:38 UTC
1) CVE-2020-9759
"An issue was discovered in WeeChat before 2.7.1 (0.4.0 to 2.7 are affected). A malformed message 352 (who) can cause a NULL pointer dereference in the callback function, resulting in a crash."


2) CVE-2020-9760
"An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for a nick."

Comment 1 Sam James archtester gentoo-dev Security 2020-03-23 16:55:39 UTC
Note that CVE-2020-8955 (bug 709452) was patched in 2.7-r2 but the others were not in that bug so did not receive a patch.

@maintianer(s): please drop 2.7-r2 for cleanup and we're good. You can do a 2.7-r3 if you feel it is appropriate, but given 2.7.1 is already stable, it seems better to just drop the old one.
Comment 2 Larry the Git Cow gentoo-dev 2020-03-23 19:47:03 UTC
The bug has been referenced in the following commit(s):

commit c8329f73882c3a757b26db8253041cc8d3c1b005
Author:     Georgy Yakovlev <>
AuthorDate: 2020-03-23 19:45:28 +0000
Commit:     Georgy Yakovlev <>
CommitDate: 2020-03-23 19:45:42 +0000

    net-irc/weechat: drop old
    Package-Manager: Portage-2.3.94, Repoman-2.3.21
    Signed-off-by: Georgy Yakovlev <>

 net-irc/weechat/Manifest                      |   1 -
 net-irc/weechat/files/2.7-CVE-2020-8955.patch |  46 --------
 net-irc/weechat/weechat-2.7-r2.ebuild         | 158 --------------------------
 3 files changed, 205 deletions(-)
Comment 3 Georgy Yakovlev gentoo-dev 2020-03-23 19:48:43 UTC
no need to keep pre 2.7.1 versions. 2.7-r2 dropped.
please proceed.
Comment 4 Thomas Deutschmann gentoo-dev Security 2020-03-25 15:59:12 UTC
New GLSA request filed.
Comment 5 GLSAMaker/CVETool Bot gentoo-dev 2020-03-25 16:06:31 UTC
This issue was resolved and addressed in
 GLSA 202003-51 at
by GLSA coordinator Thomas Deutschmann (whissi).