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Debian LTS Advisory ([SECURITY] [DLA 1991-1] libssh2 security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

2 years ago

Modified

Modified

2 years ago

Summary

The remote host is missing an update for the 'libssh2' package(s) announced via the DSA-1991-1 advisory.

Insight

Insight

In libssh2, SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server

Affected Software

Affected Software

'libssh2' 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 8 'Jessie', this problem has been fixed in version 1.4.3-4.1+deb8u6. We recommend that you upgrade your libssh2 packages.

Common Vulnerabilities and Exposures (CVE)