Vulnerability Name:

CVE-2011-1488 (CCN-66608)

Assigned:2011-03-03
Published:2011-03-03
Updated:2020-08-18
Summary:A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are logged when $RepeatedMsgReduction was enabled. A local attacker could use this flaw to cause a denial of the rsyslogd daemon service by crashing the service via a sequence of repeated log messages sent within short periods of time.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:1.9 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P)
1.4 Low (Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
1.6 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-772
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: Adiscon Bugzilla Bug 225
memory leak when $RepeatedMsgReduction is turned on

Source: MITRE
Type: CNA
CVE-2011-1488

Source: MISC
Type: Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html

Source: CCN
Type: SA44053
rsyslog Memory Leak Denial of Service Weaknesses

Source: CCN
Type: OSVDB ID: 75190
rsyslog RepeatedMsgReduction Function Memory Exhaustion Local DoS

Source: CCN
Type: rsyslog Web Site
Changelog for 5.6.4 (v5-stable)

Source: MISC
Type: Third Party Advisory
https://access.redhat.com/security/cve/cve-2011-1488

Source: MISC
Type: Exploit, Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488

Source: XF
Type: UNKNOWN
rsyslog-repeatedmsgreduction-dos(66608)

Source: MISC
Type: UNKNOWN
https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a

Source: MISC
Type: Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1488

Source: SUSE
Type: SUSE-SR:2011:007
SUSE Security Summary Report

Vulnerable Configuration:Configuration 1:
  • cpe:/a:rsyslog:rsyslog:*:*:*:*:*:*:*:* (Version < 5.7.6)

    • Configuration 2:
  • cpe:/o:opensuse:opensuse:11.4:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:rsyslog:rsyslog:5.6.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20111488
    V
    		CVE-2011-1488
    2022-09-02
    oval:com.ubuntu.precise:def:20111488000
    V
    		CVE-2011-1488 on Ubuntu 12.04 LTS (precise) - low.
    2011-04-04
    oval:com.ubuntu.trusty:def:20111488000
    V
    		CVE-2011-1488 on Ubuntu 14.04 LTS (trusty) - low.
    2011-04-04
    BACK
    rsyslog rsyslog *
    opensuse opensuse 11.4
    debian debian linux 8.0
    debian debian linux 9.0
    debian debian linux 10.0
    rsyslog rsyslog 5.6.0