high
7.5
CWE
119
Advisory Published
Updated

CVE-2015-5590: Buffer Overflow

First published: Tue Jan 19 2016(Updated: )

Stack-based buffer overflow in the phar_fix_filepath function in ext/phar/phar.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large length value, as demonstrated by mishandling of an e-mail attachment by the imap PHP extension.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
PHP<=5.4.42
PHP=5.5.0
PHP=5.5.0-alpha1
PHP=5.5.0-alpha2
PHP=5.5.0-alpha3
PHP=5.5.0-alpha4
PHP=5.5.0-alpha5
PHP=5.5.0-alpha6
PHP=5.5.0-beta1
PHP=5.5.0-beta2
PHP=5.5.0-beta3
PHP=5.5.0-beta4
PHP=5.5.0-rc1
PHP=5.5.0-rc2
PHP=5.5.1
PHP=5.5.2
PHP=5.5.3
PHP=5.5.4
PHP=5.5.5
PHP=5.5.6
PHP=5.5.7
PHP=5.5.8
PHP=5.5.9
PHP=5.5.10
PHP=5.5.11
PHP=5.5.12
PHP=5.5.13
PHP=5.5.14
PHP=5.5.18
PHP=5.5.19
PHP=5.5.20
PHP=5.5.21
PHP=5.5.22
PHP=5.5.23
PHP=5.5.24
PHP=5.5.25
PHP=5.5.26
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
PHP=5.6.0-beta4
PHP=5.6.1
PHP=5.6.2
PHP=5.6.3
PHP=5.6.4
PHP=5.6.5
PHP=5.6.6
PHP=5.6.7
PHP=5.6.8
PHP=5.6.9
PHP=5.6.10

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-5590?

    CVE-2015-5590 has a high severity level due to the potential for remote attackers to cause a denial of service.

  • How do I fix CVE-2015-5590?

    To mitigate CVE-2015-5590, upgrade PHP to versions 5.4.43, 5.5.27, or 5.6.11 or later.

  • What systems are affected by CVE-2015-5590?

    CVE-2015-5590 affects PHP versions prior to 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11.

  • What attack vectors are associated with CVE-2015-5590?

    CVE-2015-5590 allows remote attackers to exploit a stack-based buffer overflow via a large length value.

  • Is there a workaround for CVE-2015-5590 if I cannot update PHP?

    There are no reliable workarounds for CVE-2015-5590, so upgrading PHP is the recommended approach.

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