Description

There's 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 it's possible that the program perform out of bounds write leading to a heap corruption. This issue affects only 32-bits builds of libssh.

INFO

Published Date :

2025-08-20T12:19:18.520Z

Last Modified :

2026-02-25T20:31:09.066Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2025-4877 vulnerability.

Vendors Products
Redhat
  • Enterprise Linux
  • Openshift
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-4877.

URL Resource
https://access.redhat.com/security/cve/CVE-2025-4877 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2376193 cve-icon cve-icon
https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-4877 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-4877 cve-icon
https://www.libssh.org/security/advisories/CVE-2025-4877.txt cve-icon cve-icon
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