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Debian Security Advisory DSA 3512-1 (libotr - security update)

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

6 years ago

Modified

Modified

10 months ago

Summary

Markus Vervier of X41 D-Sec GmbH discovered an integer overflow vulnerability in libotr, an off-the-record (OTR) messaging library, in the way how the sizes of portions of incoming messages were stored. A remote attacker can exploit this flaw by sending crafted messages to an application that is using libotr to perform denial of service attacks (application crash), or potentially, execute arbitrary code with the privileges of the user running the application.

Affected Software

Affected Software

libotr on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the oldstable distribution (wheezy), this problem has been fixed in version 3.2.1-1+deb7u2. For the stable distribution (jessie), this problem has been fixed in version 4.1.0-2+deb8u1. We recommend that you upgrade your libotr packages.

Common Vulnerabilities and Exposures (CVE)