5.3

CVE-2026-59842

Libssh: libssh: information disclosure via short gssapi curve25519 public key

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libssh ≫ Libssh Version 0.12.0
Redhat ≫ Hardened Images Version -
Redhat ≫ Enterprise Linux Version 10.0
Redhat ≫ Enterprise Linux Version 10.0 HwPlatform arm64
Redhat ≫ Enterprise Linux Version 10.0 HwPlatform x64
Redhat ≫ Enterprise Linux Version 10.2 HwPlatform arm64
Redhat ≫ Enterprise Linux Version 10.2 HwPlatform x64
Redhat ≫ Enterprise Linux For Els Version 10.2 HwPlatform arm64
Redhat ≫ Enterprise Linux For Els Version 10.2 HwPlatform x64
Redhat ≫ Enterprise Linux For Eus Version 10.2 HwPlatform arm64
Redhat ≫ Enterprise Linux For Eus Version 10.2 HwPlatform x64
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.42% 0.356
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
RedHat 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://access.redhat.com/security/cve/CVE-2026-59842
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2498168
Vendor Advisory
Issue Tracking
https://access.redhat.com/errata/RHSA-2026:42922
Issue Tracking
https://access.redhat.com/errata/RHSA-2026:55855
Vendor Advisory