Published: 30/11/2012 Updated: 19/12/2012
CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10
VMScore: 668
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Summary

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

Affected Products

Vendor Product Versions
LibsshLibssh0.4.7, 0.4.8, 0.5.0, 0.5.1, 0.5.2

Vendor Advisories

Multiple vulnerabilities were discovered in libssh by Florian Weimer and Xi Wang: CVE-2012-4559: multiple double free() flaws CVE-2012-4561: multiple invalid free() flaws CVE-2012-4562: multiple improper overflow checks Those could lead to a denial of service by making an SSH client linked to libssh crash, and maybe even arbitrary code exec ...