Veille CVE
CVE-2026-59842
5.3 MoyenneDescription
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.
Produits concernés
- Red Hat Enterprise Linux 10
- Red Hat Hardened Images
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Libssh libssh
- Redhat hardened images
- Redhat enterprise linux
- Redhat enterprise linux for els
- Redhat enterprise linux for eus
- Redhat enterprise linux for ibm z systems
- Redhat enterprise linux for ibm z systems els
- Redhat enterprise linux for ibm z systems eus
- Redhat enterprise linux for power little endian
- Redhat enterprise linux for power little endian els
- Redhat enterprise linux for power little endian eus
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 3.7 Faible | secalert@redhat.com | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| 3.1 | 5.3 Moyenne | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:42922 Issue Tracking
- https://access.redhat.com/errata/RHSA-2026:55855 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-59842 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2498168 Issue TrackingVendor Advisory