Mandriva Linux Security Advisory 2015-060 - Florian Weimer of the Red Hat Product Security Team discovered a heap-based buffer overflow flaw in LibYAML, a fast YAML 1.1 parser and emitter library. A remote attacker could provide a YAML document with a specially-crafted tag that, when parsed by an application using libyaml, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. Ivan Fratric of the Google Security Team discovered a heap-based buffer overflow vulnerability in LibYAML, a fast YAML 1.1 parser and emitter library. A remote attacker could provide a specially-crafted YAML document that, when parsed by an application using libyaml, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. An assertion failure was found in the way the libyaml library parsed wrapped strings. An attacker able to load specially crafted YAML input into an application using libyaml could cause the application to crash.
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Mandriva Linux Security Advisory MDVSA-2015:060
http://www.mandriva.com/en/support/security/
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Package : yaml
Date : March 13, 2015
Affected: Business Server 2.0
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Problem Description:
Updated yaml packages fix security vulnerabilities:
Florian Weimer of the Red Hat Product Security Team discovered a
heap-based buffer overflow flaw in LibYAML, a fast YAML 1.1 parser
and emitter library. A remote attacker could provide a YAML document
with a specially-crafted tag that, when parsed by an application
using libyaml, would cause the application to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application (CVE-2013-6393).
Ivan Fratric of the Google Security Team discovered a heap-based buffer
overflow vulnerability in LibYAML, a fast YAML 1.1 parser and emitter
library. A remote attacker could provide a specially-crafted YAML
document that, when parsed by an application using libyaml, would cause
the application to crash or, potentially, execute arbitrary code with
the privileges of the user running the application (CVE-2014-2525).
An assertion failure was found in the way the libyaml library parsed
wrapped strings. An attacker able to load specially crafted YAML input
into an application using libyaml could cause the application to crash
(CVE-2014-9130).
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References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6393
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2525
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9130
http://advisories.mageia.org/MGASA-2014-0040.html
http://advisories.mageia.org/MGASA-2014-0150.html
http://advisories.mageia.org/MGASA-2014-0508.html
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Updated Packages:
Mandriva Business Server 2/X86_64:
29034c422a2db17ffa090c46aabf4915 mbs2/x86_64/lib64yaml0_2-0.1.6-1.mbs2.x86_64.rpm
437b662beb8a7b9f413dd6de8d4f6b6a mbs2/x86_64/lib64yaml-devel-0.1.6-1.mbs2.x86_64.rpm
2fbacb9604ebb04119858d94d469423d mbs2/SRPMS/yaml-0.1.6-1.mbs2.src.rpm
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:
gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98
You can view other update advisories for Mandriva Linux at:
http://www.mandriva.com/en/support/security/advisories/
If you want to report vulnerabilities, please contact
security_(at)_mandriva.com
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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