CVE-2011-1155 Denial of service in n/a

Low 1.9 Published Updated

Attackers can cause log rotation failure by using newline or backslash characters in log filenames, impacting system availability.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Not stated
Victim action needed
Not needed
Fix
Available

What is CVE-2011-1155?

CVE-2011-1155 is a low-severity denial of service vulnerability in n/a, published on 30 Mar 2011.

Official description

The writeState function in logrotate.c in logrotate 3.7.9 and earlier might allow context-dependent attackers to cause a denial of service (rotation outage) via a (1) \n (newline) or (2) \ (backslash) character in a log filename, as demonstrated by a filename that is automatically constructed on the basis of a hostname or virtual machine name.

Weakness: CWE-399

Which versions are affected by CVE-2011-1155?

It affects 1 product.

Products include Gentoo Logrotate.

How do I fix CVE-2011-1155?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2011-1155 being exploited?

There is no known exploitation of CVE-2011-1155 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-1155, GHSA-fcm8-m55c-7v4r.

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