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.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
---|---|---|
![]() |
DLA-2740-1 | firefox-esr security update |
![]() |
DLA-2745-1 | thunderbird security update |
![]() |
DSA-4956-1 | firefox-esr security update |
![]() |
DSA-4959-1 | thunderbird security update |
![]() |
EUVD-2021-16447 | 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. |
![]() |
USN-5037-1 | Firefox vulnerabilities |
![]() |
USN-5058-1 | Thunderbird vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2024-08-03T22:24:59.647Z
Reserved: 2021-04-01T00:00:00
Link: CVE-2021-29988

No data.

Status : Modified
Published: 2021-08-17T20:15:08.013
Modified: 2024-11-21T06:02:07.337
Link: CVE-2021-29988


No data.