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Debian LTS: Security Advisory for libssh (DLA-2303-1)
Information
Severity
Severity
High
Family
Family
Debian Local Security Checks
CVSSv2 Base
CVSSv2 Base
7.5
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
3 years ago
Modified
Modified
3 years ago
Summary
The remote host is missing an update for the 'libssh' package(s) announced via the DLA-2303-1 advisory.
Insight
Insight
The code in src/sftpserver.c did not verify the validity of certain pointers and expected them to be valid. A NULL pointer dereference could have been occurred that typically causes a crash and thus a denial-of-service.
Affected Software
Affected Software
'libssh' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For Debian 9 stretch, this problem has been fixed in version 0.7.3-2+deb9u3. We recommend that you upgrade your libssh packages.