CVE-2015-4643

Name: CVE-2015-4643
Creator: NVD / NIST
Published: 2016-05-16T10:59:15.503+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 16.51%

Last modified Jun 17, 2026

CVE-2015-4643 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 16.51% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

16.51%

96.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions	Update
Php	Php	< 5.4.42	—
Php	Php	>= 5.5.0, < 5.5.26	—
Php	Php	>= 5.6.0, < 5.6.10	—
Debian	Debian Linux	7.0	—
Debian	Debian Linux	8.0	—
Redhat	Enterprise Linux Desktop	6.0	—
Redhat	Enterprise Linux Desktop	7.0	—
Redhat	Enterprise Linux Server	6.0	—
Redhat	Enterprise Linux Server	7.0	—
Redhat	Enterprise Linux Server Aus	6.6	—
Redhat	Enterprise Linux Server Aus	7.3	—
Redhat	Enterprise Linux Server Aus	7.4	—
Redhat	Enterprise Linux Server Aus	7.6	—
Redhat	Enterprise Linux Server Eus	6.6	—
Redhat	Enterprise Linux Server Eus	7.1	—
Redhat	Enterprise Linux Server Eus	7.2	—
Redhat	Enterprise Linux Server Eus	7.3	—
Redhat	Enterprise Linux Server Eus	7.4	—
Redhat	Enterprise Linux Server Eus	7.5	—
Redhat	Enterprise Linux Server Eus	7.6	—
Redhat	Enterprise Linux Server Tus	6.6	—
Redhat	Enterprise Linux Server Tus	7.3	—
Redhat	Enterprise Linux Server Tus	7.6	—
Redhat	Enterprise Linux Workstation	6.0	—
Redhat	Enterprise Linux Workstation	7.0	—
Oracle	Linux	6	—
Oracle	Linux	7	0

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=0765623d6991b62ffcd93ddb6be8a5203a2fa7e2
http://openwall.com/lists/oss-security/2015/06/18/6Mailing List, Patch, Third Party Advisory
http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1135.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1186.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1187.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1218.htmlThird Party Advisory
http://www.debian.org/security/2015/dsa-3344Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
http://www.securityfocus.com/bid/75291Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1032709Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=69545Exploit, Issue Tracking, Vendor Advisory
https://security.gentoo.org/glsa/201606-10Third Party Advisory
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=0765623d6991b62ffcd93ddb6be8a5203a2fa7e2
http://openwall.com/lists/oss-security/2015/06/18/6Mailing List, Patch, Third Party Advisory
http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1135.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1186.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1187.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1218.htmlThird Party Advisory
http://www.debian.org/security/2015/dsa-3344Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
http://www.securityfocus.com/bid/75291Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1032709Third Party Advisory, VDB Entry
https://bugs.php.net/bug.php?id=69545Exploit, Issue Tracking, Vendor Advisory
https://security.gentoo.org/glsa/201606-10Third Party Advisory

Timeline

Published: May 16, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-4643?

How severe is CVE-2015-4643?

Severity scoring for CVE-2015-4643 is pending analysis. The EPSS model estimates a 16.51% probability of exploitation in the next 30 days.

How do I fix CVE-2015-4643?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-4643?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST