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Debian LTS: Security Advisory for rsyslog (DLA-3016-1)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

2 months ago

Modified

Modified

2 months ago

Summary

The remote host is missing an update for the 'rsyslog' package(s) announced via the DLA-3016-1 advisory.

Insight

Insight

Several vulnerabilities were discovered in rsyslog, a system and kernel logging daemon. When a log server is configured to accept logs from remote clients through specific modules such as 'imptcp', an attacker can cause a denial of service (DoS) and possibly execute code on the server. CVE-2018-16881 A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. CVE-2022-24903 Modules for TCP syslog reception have a potential heap buffer overflow when octet-counted framing is used. This can result in a segfault or some other malfunction.

Affected Software

Affected Software

'rsyslog' 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, these problems have been fixed in version 8.24.0-1+deb9u2. We recommend that you upgrade your rsyslog packages.

Common Vulnerabilities and Exposures (CVE)