CVE-2012-4561

2012-11-3022:55:00

Debian Security Bug Tracker

security-tracker.debian.org

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.104 Low

EPSS

Percentile

95.0%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12alllibssh< 0.5.3-1libssh_0.5.3-1_all.deb
Debian11alllibssh< 0.5.3-1libssh_0.5.3-1_all.deb
Debian10alllibssh< 0.5.3-1libssh_0.5.3-1_all.deb
Debian999alllibssh< 0.5.3-1libssh_0.5.3-1_all.deb
Debian13alllibssh< 0.5.3-1libssh_0.5.3-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	libssh	< 0.5.3-1	libssh_0.5.3-1_all.deb
Debian	11	all	libssh	< 0.5.3-1	libssh_0.5.3-1_all.deb
Debian	10	all	libssh	< 0.5.3-1	libssh_0.5.3-1_all.deb
Debian	999	all	libssh	< 0.5.3-1	libssh_0.5.3-1_all.deb
Debian	13	all	libssh	< 0.5.3-1	libssh_0.5.3-1_all.deb