Inclusion of Sensitive Information in Log Files in GNU C Library (glibc) - CVE-2022-39046

Vulnerability details

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to the software can store potentially sensitive data into a log file. When the syslog() function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.

Affected software

How to mitigate CVE-2022-39046

External References

• https://sourceware.org/bugzilla/show_bug.cgi?id=29536
• https://security.netapp.com/advisory/ntap-20221104-0002/
• https://security.gentoo.org/glsa/202310-03
• http://www.openwall.com/lists/oss-security/2024/01/30/8
• http://www.openwall.com/lists/oss-security/2024/01/30/6

Related Security Bulletins

• Information disclosure in GNU C Library (glibc)
• Gentoo update for glibc