Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libssh-config package, versions <0.9.8-150600.11.15.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.73% (53rd percentile)

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  • Snyk IDSNYK-SLES156-LIBSSHCONFIG-18387513
  • published29 Jul 2026
  • disclosed28 Jul 2026

Introduced: 28 Jul 2026

CVE-2026-59843  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 libssh-config to version 0.9.8-150600.11.15.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh-config package and not the libssh-config package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSH_MSG_CHANNEL_OPEN, causing later channel writes to loop indefinitely and consume CPU, leading to denial of service.

CVSS Base Scores

version 3.1