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CVE-2015-3146

libssh: null pointer dereference due to a logical error in the handling of a SSH_MSG_NEWKEYS and KEXDH_REPLY packets

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Severity

Moderate

Red Hat Product Security

5

CVSS 2.0

Review impact separately from score.

Published · April 30, 2015

Updated · June 27, 2026

Description

The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 5
AV:N/AC:L/Au:N/C:N/I:N/A:P

CWE-476 · NULL Pointer Dereference