Fedora 19 : perl-YAML-LibYAML-0.41-4.fc19 (2014-4517)

Medium Nessus Plugin ID 73364

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VPR Score: 5.9

Synopsis

The remote Fedora host is missing a security update.

Description

This update addressed two security issues.

CVE-2013-6393: The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow.

CVE-2014-2525: 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.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected perl-YAML-LibYAML package.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=1033990

https://bugzilla.redhat.com/show_bug.cgi?id=1078083

http://www.nessus.org/u?760b9d36

Plugin Details

Severity: Medium

ID: 73364

File Name: fedora_2014-4517.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2014/04/07

Updated: 2020/03/12

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:perl-YAML-LibYAML, cpe:/o:fedoraproject:fedora:19

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/03/30

Reference Information

CVE: CVE-2013-6393, CVE-2014-2525

BID: 65258

FEDORA: 2014-4517