Critical severity · published Feb 12, 2020
CVE-2020-8955
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…
9.8
CVSS
3.4%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BS
Backports Sle · Opensuse
15.0; 15.0 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
FE
Fedora · Fedoraproject
30; 31; 32 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
WE
Weechat · Weechat
0.3.8 through 2.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8955
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8955
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00032.html
Patch
https://github.com/weechat/weechat/commit/6f4f147d8e86adf9ad34a8ffd7e7f1f23a7e74da
Mailing List
https://lists.debian.org/debian-lts-announce/2020/03/msg00031.html
Mailing List
https://lists.debian.org/debian-lts-announce/2021/09/msg00018.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ASRTCQFFDAAK347URWNDH6NSED2BGNY/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER23GT23US5JXDLUZAMGMWXKZ74MI4S2/
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