CVE-2015-4643
CRITICAL severity · CVSS 9.8 · Memory corruption
9.8CVSS CRITICAL
Summary
Integer overflow in the ftp_genlist function in ext/ftp/ftp.c in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 allows remote FTP servers to execute arbitrary code via a long reply to a LIST command, leading to a heap-based buffer overflow. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-4022.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)17%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://openwall.com/lists/oss-security/2015/06/18/6 ↗
Additional information
- NVD record
- http://openwall.com/lists/oss-security/2015/06/18/6Patch
- http://php.net/ChangeLog-5.phpAdvisory
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=0765623d6991b62ffcd93ddb6be8a5203a2fa7e2
- http://rhn.redhat.com/errata/RHSA-2015-1135.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2015-1186.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2015-1187.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2015-1218.htmlAdvisory
- http://www.debian.org/security/2015/dsa-3344Advisory