PT-2022-5331 · Exim+4 · Exim+4
Graeme Fowler
·
Published
2022-08-31
·
Updated
2025-05-23
·
CVE-2022-3559
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Exim (affected versions not specified)
Description
A vulnerability was found in Exim, affecting the Regex Handler component. This issue leads to use after free, potentially allowing a remote attacker to cause a denial of service or gain access to confidential data. The manipulation of the Regex Handler component can be exploited by a remote attacker, allowing them to send a special request to the application and obtain access to sensitive information.
Recommendations
To fix this issue, it is recommended to apply a patch with the name 4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2. As a temporary workaround, consider disabling the Regex Handler component until a patch is available. Restrict access to the component to minimize the risk of exploitation. Avoid using the component in a way that could lead to use after free until the issue is resolved.
Fix
Use After Free
Buffer Overflow
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Related Identifiers
Affected Products
Astra Linux
Exim
Linuxmint
Red Os
Ubuntu