Description (CNA)
A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small amounts of server memory.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:0.12.0-3.el10_2 before * |
| Red Hat / Red Hat Hardened Images | unaffected 0.12.1-4.hum1 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected |
CWE
CWE-125
References
- https://access.redhat.com/errata/RHSA-2026:42922
- https://access.redhat.com/errata/RHSA-2026:55855
- https://access.redhat.com/security/cve/CVE-2026-59842
- https://bugzilla.redhat.com/show_bug.cgi?id=2498168
ADP enrichment
No English description supplied.
No references supplied.