CVE-2025-4877

Publication date

2025-08-20 12:19:18

Family

redhat

State

PUBLISHED

Description

Theres a vulnerability in the libssh package where when a libssh consumer passes in an unexpectedly large input buffer to ssh_get_fingerprint_hash() function. In such cases the bin_to_base64() function can experience an integer overflow leading to a memory under allocation, when that happens its possible that the program perform out of bounds write leading to a heap corruption. This issue affects only 32-bits builds of libssh.