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Affected Component
Analysis
libssh
Patched
Name
CVE-2025-5987
Description
A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized cipher context. This occurs because the OpenSSL error code returned aliases with the SSH_OK code, resulting in libssh not properly detecting the error returned by the OpenSSL library. This issue can lead to undefined behavior, including compromised data confidentiality and integrity or crashes.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://access.redhat.com/security/cve/CVE-2025-5987Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2376219Issue Tracking
Analysis#
Vulnerability Ratings#
8.1
CVSSv31
8.1
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
libssh (yocto:scarthgap)
#
Title
Author
Resolve
1
CVE-2025-5987 libcrypto: Correctly detect failures of chacha
Jakub Jelen <jjelen@redhat.com>
CVE-2025-5987