Denial of Service Vulnerability in WeeChat IRC Client
CVE-2020-8955

9.8CRITICAL

Key Information:

Vendor

Weechat

Status
Weechat
Vendor
CVE Published:
12 February 2020

What is CVE-2020-8955?

A vulnerability exists in the WeeChat IRC client that allows remote attackers to exploit a specific flaw in the irc_mode_channel_update function. By sending a malformed IRC message of type 324, attackers can cause a buffer overflow, leading to a denial of service. This results in application crashes, and may potentially trigger other unspecified impacts, compromising the stability of the affected system.

References

https://weechat.org/doc/security/
x_refsource_MISC
https://github.com/weechat/weechat/commit/6f4f147d8e86adf...
x_refsource_MISC
http://lists.opensuse.org/opensuse-security-announce/2020...
vendor-advisoryx_refsource_SUSE

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.