CVE-2012-6063

high
Published 2012-11-30 · Modified 2026-04-29
CVSS v3
CVSS v2
7.5
VIR risk
7.5

Description

Double free vulnerability in the sftp_mkdir function in sftp.c in libssh before 0.5.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors, a different vector than CVE-2012-4559.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2012-6063

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed0.5.3-1
debian debianbullseyefixed0.5.3-1
debian debianforkyfixed0.5.3-1
debian debiansidfixed0.5.3-1
debian debiantrixiefixed0.5.3-1

Application impact

VendorProductVersionsFixed
libsshlibssh{"endIncluding":"0.5.2"}
libsshlibssh0.4.7
libsshlibssh0.4.8
libsshlibssh0.5.0
libsshlibssh0.5.1

References

CWEs

CWE-399

Verify integrity in audit chain (admin only). AS-IS.