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CVE

DEBIAN-CVE-2026-0966

The API function `ssh_get_hexa()` is vulnerable, when 0-lenght input is provided to this function.
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CVE

DEBIAN-CVE-2026-0966

The API function `ssh_get_hexa()` is vulnerable, when 0-lenght input is provided to this function.

The API function sshgethexa() is vulnerable, when 0-lenght input is provided to this function. This function is used internally in sshgetfingerprint_hash() and sshprinthexa() (deprecated), which is vulnerable to the same input (length is provided by the calling application).  The function is also used internally in the gssapi code for logging the OIDs received by the server during GSSAPI authentication. This could be triggered remotely, when the server allows GSSAPI authentication and logging verbosity is set at least to SSHLOGPACKET (3). This could cause self-DoS of the per-connection daemon process.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
C
H
U
-

Related Resources

No items found.

References

https://security-tracker.debian.org/tracker/CVE-2026-0966

Severity

8.2

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.2
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
0.12.0-1

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