CVE-2026-59842
5.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploitability: 3.9 / Impact: 1.4
Source: NVD
Description
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 (19)
Products: Libssh: Libssh · Redhat: Enterprise Linux, Hardened Images, Enterprise Linux For Els, Enterprise Linux For Eus, Enterprise Linux For Ibm Z Systems, Enterprise Linux For Ibm Z Systems Els, Enterprise Linux For Ibm Z Systems Eus, Enterprise Linux For Power Little Endian, Enterprise Linux For Power Little Endian Els, Enterprise Linux For Power Little Endian Eus
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Version 0.12.0 | |
| Version 10.0 | |
| All versions |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Version 10.0 | |
| Version 10.2 | |
| Version 10.2 | |
| Version 10.0 | |
| Version 10.2 | |
| Version 10.2 | |
| Version 10.0 | |
| Version 10.2 | |
| Version 10.2 |
References (4)
Source: secalert@redhat.com
Issue TrackingVendor Advisory
Timeline
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