CWE
119
Advisory Published
CVE Published
Updated

CVE-2014-4049: Buffer Overflow

First published: Thu Jun 12 2014(Updated: )

Heap-based buffer overflow in the php_parserr function in ext/standard/dns.c in PHP 5.6.0beta4 and earlier allows remote servers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted DNS TXT record, related to the dns_get_record function.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
SUSE Linux=11.3
PHP>=5.3.0<5.3.29
PHP>=5.4.0<5.4.30
PHP>=5.5.0<5.5.14
PHP=5.6.0-alpha1
PHP=5.6.0-alpha2
PHP=5.6.0-alpha3
PHP=5.6.0-alpha4
PHP=5.6.0-alpha5
PHP=5.6.0-beta1
PHP=5.6.0-beta2
PHP=5.6.0-beta3
Debian=7.0
Debian=8.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2014-4049?

    CVE-2014-4049 is considered critical as it may lead to denial of service and arbitrary code execution.

  • How do I fix CVE-2014-4049?

    To mitigate CVE-2014-4049, upgrade PHP to a version later than 5.6.0beta4, where the vulnerability is resolved.

  • Which PHP versions are affected by CVE-2014-4049?

    CVE-2014-4049 affects PHP versions from 5.3.0 up to 5.6.0beta4.

  • Can CVE-2014-4049 lead to data breaches?

    Yes, due to the potential for arbitrary code execution, CVE-2014-4049 could lead to unauthorized access and data breaches.

  • Is CVE-2014-4049 specific to certain operating systems?

    CVE-2014-4049 impacts PHP installations across various operating systems including openSUSE and Debian.

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