PT-2021-3793 · Mozilla+8 · Firefox Esr+10
Pahhur
·
Published
2021-08-10
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Updated
2024-12-12
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CVE-2021-29986
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
Thunderbird versions prior to 78.13
Thunderbird versions prior to 91
Firefox ESR versions prior to 78.13
Firefox versions prior to 91
Description
A suspected race condition when calling
getaddrinfo led to memory corruption and a potentially exploitable crash. This issue only affects Linux operating systems, with other operating systems being unaffected. The vulnerability can be exploited by a remote attacker, who can create a special web page that, when opened by the victim, can cause memory corruption.Recommendations
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.
For Firefox ESR versions prior to 78.13, update to version 78.13 or later.
For Firefox versions prior to 91, update to version 91 or later.
Exploit
Fix
Buffer Overflow
Race Condition
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Centos
Firefox
Firefox Esr
Linuxmint
Red Hat
Rocky Linux
Suse
Thunderbird
Ubuntu