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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-59845

Libssh: libssh: denial of service via unchecked proxycommand fork() failure

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Status
Published
Published
Updated
Assigning organization
redhat

Description

A flaw was found in libssh. When ProxyCommand is used, an unchecked fork() failure can be stored as process ID -1; during cleanup, signals may then be sent across the caller's accessible process tree, leading to local denial of service.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:0.12.0-3.el10_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:0.9.6-17.el8_10 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:0.9.6-17.el8_10 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:0.10.4-19.el9_8 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:0.10.4-19.el9_8 to < *unaffected

Red Hat Red Hat Hardened Images

Default version status: affected

  • 0.12.1-4.hum1 to < *unaffected

References