CVE-2011-3200: rsyslog

CVSS: 5.0v2.0MediumModified

AliasesRHSA-2011:1247DEBIAN-CVE-2011-3200

Published 06-09-2011Last modified 06-08-2024

Vulnerability summary

CVE-2011-3200 is a medium (CVSS 5.0) vulnerability in rsyslog. EPSS estimates a 20.76% chance of exploitation in the next 30 days, higher than 97.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk

34/100

0100

Medium · default modelHow is this calculated?

CVSS score

5.0/10

010

Medium · v2.0 (NVD)

EPSS score

20.76%

0%100%

High · 0.00 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits1metasploit

Advisory lineage

Upstream 0 · Downstream 1 · Related 1

OPENSUSE-SU-2024:10498-1

Timeline

06-09-2011
PublishedVulnerability first disclosed.
06-08-2024
Last modifiedVulnerability information updated.

Description

Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.

CVSS metrics

1 score · 1 source · 1 version

v2.05.0

EPSS trend

Probability

20.76%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 20.76% on 21-09-2026

21-09-202621-10-2026

EPSS score

20.76%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found

MetasploitremoteUnverified
rsyslog Long Tag Off-By-Two DoS
auxiliary/dos/syslog/rsyslog_long_tag
Maturity: poc

Weaknesses

CWE · root cause

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected systems

Redhat7 products

rsyslog< 0:4.6.2-3.el6_1.2
rsyslog-debuginfo< 0:4.6.2-3.el6_1.2
rsyslog-gnutls< 0:4.6.2-3.el6_1.2
rsyslog-gssapi< 0:4.6.2-3.el6_1.2
rsyslog-mysql< 0:4.6.2-3.el6_1.2

Show all 7

Debian1 product

rsyslog< 5.8.5-1

Rsyslog1 product

rsyslog4.6.0 | 4.6.1 | 4.6.2 | 4.6.3 | 4.6.4 | 4.6.5 | 4.6.6 | 4.6.7 | 5.2.0 | 5.2.1 | 5.2.2 | 5.3.1 | 5.3.2 | 5.3.3 | 5.3.4 | 5.3.5 | 5.3.6 | 5.3.7 | 5.4.0 | 5.4.1 | 5.4.2 | 5.5.0 | 5.5.1 | 5.5.2 | 5.5.3 | 5.5.4 | 5.5.5 | 5.5.6 | 5.5.7 | 5.6.0 | 5.6.1 | 5.6.2 | 5.6.3 | 5.6.4 | 5.6.5 | 5.7.0 | 5.7.1 | 5.7.2 | 5.7.3 | 5.7.4 | 5.7.5 | 5.7.6 | 5.7.7 | 5.7.8 | 5.7.9 | 5.7.10 | 5.8.0 | 5.8.1 | 5.8.2 | 5.8.3 | 5.8.4

3 vendors · 9 products