PT-2021-3794 · Mozilla+8 · Firefox Esr+10
Irvan Kurniawan
·
Published
2021-08-10
·
Updated
2024-12-12
·
CVE-2021-29988
CVSS v2.0
10
High
| Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 91
Firefox ESR versions prior to 78.13
Thunderbird versions prior to 78.13
Thunderbird versions prior to 91
Description
The issue arises from Firefox incorrectly treating an inline list-item element as a block element, leading to an out of bounds read or memory corruption, and potentially causing a crash. This can be exploited by a remote attacker to access confidential data, compromise data integrity, and cause a denial of service.
Recommendations
For Firefox versions prior to 91, update to version 91 or later.
For Firefox ESR versions prior to 78.13, update to version 78.13 or later.
For Thunderbird versions prior to 78.13, update to version 78.13 or later.
For Thunderbird versions prior to 91, update to version 91 or later.
Exploit
Fix
Out of bounds Read
Memory Corruption
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Centos
Firefox
Firefox Esr
Linuxmint
Red Hat
Rocky Linux
Suse
Thunderbird
Ubuntu