Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-40516 |
CWE-ID | CWE-125 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
WeeChat Client/Desktop applications / Messaging software |
Vendor | WeeChat.org |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU56368
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40516
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in plugins/relay/relay-websocket.c in the Relay plugin. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWeeChat: 3.0 - 3.2
External linkshttp://weechat.org/doc/security/
http://github.com/weechat/weechat/commit/8b1331f98de1714bae15a9ca2e2b393ba49d735b
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.