CVE-2021-40516

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash) via a crafted WebSocket frame that trigger an out-of-bounds read in plugins/relay/relay-websocket.c in the Relay plugin.
Overview
  • CVE ID
  • CVE-2021-40516
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-09-05T18:15:07
  • Last Modified Date
  • 2021-10-07T17:55:02
Weakness Enumerations
CWE URL
CWE-125 http://cwe.mitre.org/data/definitions/125.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:weechat:weechat:*:*:*:*:*:*:*:* 1 OR 0.4.1 3.2.1
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://weechat.org/doc/security/ Patch Vendor Advisory
https://github.com/weechat/weechat/commit/8b1331f98de1714bae15a9ca2e2b393ba49d735b Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00018.html Mailing List Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-40516
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40516
History
Created Old Value New Value Data Type Notes
2022-05-10 06:52:08 Added to TrackCVE
2022-12-05 09:37:52 2021-09-05T18:15Z 2021-09-05T18:15:07 CVE Published Date updated
2022-12-05 09:37:52 2021-10-07T17:55:02 CVE Modified Date updated
2022-12-05 09:37:52 Analyzed Vulnerability Status updated