FreeBSD : LibYAML input sanitization errors (580cc46b-bb1e-11e3-b144-2c4138874f7d)

This script is Copyright (C) 2014 Tenable Network Security, Inc.

Synopsis :

The remote FreeBSD host is missing one or more security-related

Description :

oCERT reports :

The LibYAML project is an open source YAML 1.1 parser and emitter
written in C.

The library is affected by a heap-based buffer overflow which can lead
to arbitrary code execution. The vulnerability is caused by lack of
proper expansion for the string passed to the
yaml_parser_scan_uri_escapes() function.

A specially crafted YAML file, with a long sequence of percent-encoded
characters in a URL, can be used to trigger the overflow.

See also :

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.8

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 73321 ()

Bugtraq ID:

CVE ID: CVE-2014-2525

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