CVE-2021-29988

CVSS V2 Medium 6.8 CVSS V3 High 8.8
Description
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
Overview
  • CVE ID
  • CVE-2021-29988
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-08-17T20:15:08
  • Last Modified Date
  • 2022-12-09T19:15:53
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 91.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 1 OR 78.13.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 1 OR 78.13.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 5.9
History
Created Old Value New Value Data Type Notes
2022-05-10 06:26:45 Added to TrackCVE
2022-12-05 08:26:17 2021-08-17T20:15Z 2021-08-17T20:15:08 CVE Published Date updated
2022-12-05 08:26:17 2022-08-10T20:15:19 CVE Modified Date updated
2022-12-05 08:26:17 Undergoing Analysis Vulnerability Status updated
2022-12-05 08:26:21 References updated
2022-12-09 20:13:56 2022-12-09T19:15:53 CVE Modified Date updated
2022-12-09 20:13:56 Undergoing Analysis Analyzed Vulnerability Status updated