ALT-PU-2025-3011-3

Package update openssh-gostcrypto in branch p10

Version7.9p1-alt4.gost.p10.4

Published2026-02-04

Max severityMEDIUM

Severity:

Closed issues (2)

MEDIUM6.8

Уязвимость компонента VerifyHostKeyDNS средства криптографической защиты OpenSSH, позволяющая нарушителю провести атаку межсайтового скриптинга (XSS)

Published: 2025-02-24Modified: 2026-03-04

CVSS 3.xMEDIUM 6.8

CVSS:3.x/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS 2.0HIGH 7.1

CVSS:2.0/AV:N/AC:H/Au:N/C:C/I:C/A:N

References

CVE-2025-26465

MEDIUM6.8

A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high.

Published: 2025-02-18Modified: 2025-11-03

CVSS 3.xMEDIUM 6.8

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

References