Vulnerability in Libssh
CVE-2012-4561
The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free "an invalid pointer on an error path," which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.
EPSS: 0.048 (90.9th percentile) — read the EPSS interpretation.
Affected products
- Libssh — versions 0.4.7, 0.4.8, 0.5.0
- N/a — versions n/a
References
- secalert@redhat.com (vendor-advisory, x_refsource_DEBIAN)
- secalert@redhat.com (vendor-advisory, x_refsource_MANDRIVA)
- secalert@redhat.com (x_refsource_MISC)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, x_refsource_FEDORA)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (vdb-entry, x_refsource_XF)