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Debian Security Advisory DSA 4151-1 (librelp - 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

5 years ago

Summary

Bas van Schaik and Kevin Backhouse discovered a stack-based buffer overflow vulnerability in librelp, a library providing reliable event logging over the network, triggered while checking x509 certificates from a peer. A remote attacker able to connect to rsyslog can take advantage of this flaw for remote code execution by sending a specially crafted x509 certificate.

Affected Software

Affected Software

librelp 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 (jessie), this problem has been fixed in version 1.2.7-2+deb8u1. For the stable distribution (stretch), this problem has been fixed in version 1.2.12-1+deb9u1. We recommend that you upgrade your librelp packages. For the detailed security status of librelp please refer to its security tracker page linked in the references.

Common Vulnerabilities and Exposures (CVE)