PT-2022-4602 · Glibc · Glibc
Adhemerval Zanella
·
Published
2022-08-31
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Updated
2024-06-15
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CVE-2022-39046
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:C/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
glibc versions 2.36 through 2.37
Description
The issue is related to the syslog function in the glibc library, which can read uninitialized memory from the heap when passed a crafted input string larger than 1024 bytes. This can potentially reveal a portion of the contents of the heap. The problem is associated with a heap-based buffer overflow.
Recommendations
For glibc versions 2.36 through 2.37, consider disabling the syslog function until a patch is available.
Restrict access to the syslog function to minimize the risk of exploitation.
Avoid using the syslog function with input strings larger than 1024 bytes until the issue is resolved.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Access of Uninitialized Pointer
Insertion into Log File
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Related Identifiers
Affected Products
Glibc