vulnerability
Oracle Linux: CVE-2025-5987: ELSA-2025-23483: libssh security update (MODERATE) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:S/C:P/I:P/A:P) | Apr 26, 2025 | Dec 22, 2025 | Dec 22, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
Apr 26, 2025
Added
Dec 22, 2025
Modified
Dec 22, 2025
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.
Solutions
oracle-linux-upgrade-libsshoracle-linux-upgrade-libssh-configoracle-linux-upgrade-libssh-devel
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.