CVE-2011-1488
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Description
The CVE Program describes this issue as:
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.
Statement
Not vulnerable. This issue did not affect the versions of rsyslog as shipped with Red Hat Enterprise Linux 5 and 6.
Additional information
- Bugzilla 694122: rsyslog: Memory leak when $RepeatedMsgReduction turned on
- CWE-401: Missing Release of Memory after Effective Lifetime
- FAQ: Frequently asked questions about CVE-2011-1488
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
| Red Hat | NVD | |
|---|---|---|
CVSS v2 Base Score | 1.9 | 1.9 |
Attack Vector | Local | Local |
Access Complexity | Medium | Medium |
Authentication | None | None |
Confidentiality Impact | None | None |
Integrity Impact | None | None |
Availability Impact | Partial | Partial |
CVSS v2 Vector
Red Hat: AV:L/AC:M/Au:N/C:N/I:N/A:P
NVD: AV:L/AC:M/Au:N/C:N/I:N/A:P
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Instability; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory)
Most memory leaks result in general product reliability problems, but if an attacker can intentionally trigger a memory leak, the attacker might be able to launch a denial of service attack (by crashing or hanging the program) or take advantage of other unexpected program behavior resulting from a low memory condition.
Other
Technical Impact: Reduce Performance
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
What can I do if my product is listed as "Will not fix"?
What can I do if my product is listed as "Fix deferred"?
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
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