CVE-2023-5941
CVSS 3.1 Score 9.8 of 10 (high)
Details
Published Nov 8, 2023
Updated: Dec 14, 2023
CWE ID 131
CWE ID 787
Summary
CVE-2023-5941 is a vulnerability affecting FreeBSD 12.4-RELEASE up to 12.4-RELEASE-p7 and FreeBSD 13.2-RELEASE up to 13.2-RELEASE-p5. The issue lies in the __sflush() function in the library's stdio module. This function fails to update FILE objects' write space members correctly for write-buffered streams when write(2) system calls return errors. This in turn can result in a heap buffer overflow. Consequences of such an overflow include data corruption or the execution of arbitrary code with the same privileges as the calling program.
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