CVE Vulnerabilities

CVE-2016-5773

Use After Free

Published: Aug 07, 2016 | Modified: Apr 12, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
5.1 MODERATE
AV:N/AC:H/Au:N/C:P/I:P/A:P
RedHat/V3
5.6 MODERATE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Ubuntu
LOW

php_zip.c in the zip extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data containing a ZipArchive object.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Php Php * 5.5.36 (including)
Php Php 5.6.0-alpha1 (including) 5.6.0-alpha1 (including)
Php Php 5.6.0-alpha2 (including) 5.6.0-alpha2 (including)
Php Php 5.6.0-alpha3 (including) 5.6.0-alpha3 (including)
Php Php 5.6.0-alpha4 (including) 5.6.0-alpha4 (including)
Php Php 5.6.0-alpha5 (including) 5.6.0-alpha5 (including)
Php Php 5.6.0-beta1 (including) 5.6.0-beta1 (including)
Php Php 5.6.0-beta2 (including) 5.6.0-beta2 (including)
Php Php 5.6.0-beta3 (including) 5.6.0-beta3 (including)
Php Php 5.6.0-beta4 (including) 5.6.0-beta4 (including)
Php Php 5.6.1 (including) 5.6.1 (including)
Php Php 5.6.2 (including) 5.6.2 (including)
Php Php 5.6.3 (including) 5.6.3 (including)
Php Php 5.6.4 (including) 5.6.4 (including)
Php Php 5.6.5 (including) 5.6.5 (including)
Php Php 5.6.6 (including) 5.6.6 (including)
Php Php 5.6.7 (including) 5.6.7 (including)
Php Php 5.6.8 (including) 5.6.8 (including)
Php Php 5.6.9 (including) 5.6.9 (including)
Php Php 5.6.10 (including) 5.6.10 (including)
Php Php 5.6.11 (including) 5.6.11 (including)
Php Php 5.6.12 (including) 5.6.12 (including)
Php Php 5.6.13 (including) 5.6.13 (including)
Php Php 5.6.14 (including) 5.6.14 (including)
Php Php 5.6.15 (including) 5.6.15 (including)
Php Php 5.6.16 (including) 5.6.16 (including)
Php Php 5.6.17 (including) 5.6.17 (including)
Php Php 5.6.18 (including) 5.6.18 (including)
Php Php 5.6.19 (including) 5.6.19 (including)
Php Php 5.6.20 (including) 5.6.20 (including)
Php Php 5.6.21 (including) 5.6.21 (including)
Php Php 5.6.22 (including) 5.6.22 (including)
Php Php 5.6.23 (including) 5.6.23 (including)
Php Php 7.0.0 (including) 7.0.0 (including)
Php Php 7.0.1 (including) 7.0.1 (including)
Php Php 7.0.2 (including) 7.0.2 (including)
Php Php 7.0.3 (including) 7.0.3 (including)
Php Php 7.0.4 (including) 7.0.4 (including)
Php Php 7.0.5 (including) 7.0.5 (including)
Php Php 7.0.6 (including) 7.0.6 (including)
Php Php 7.0.7 (including) 7.0.7 (including)
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-php56-0:2.3-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-php56-php-0:5.6.25-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6 RedHat rh-php56-php-pear-1:1.9.5-4.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-php56-0:2.3-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-php56-php-0:5.6.25-1.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS RedHat rh-php56-php-pear-1:1.9.5-4.el6 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-php56-0:2.3-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-php56-php-0:5.6.25-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7 RedHat rh-php56-php-pear-1:1.9.5-4.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS RedHat rh-php56-0:2.3-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS RedHat rh-php56-php-0:5.6.25-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS RedHat rh-php56-php-pear-1:1.9.5-4.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-php56-0:2.3-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-php56-php-0:5.6.25-1.el7 *
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS RedHat rh-php56-php-pear-1:1.9.5-4.el7 *
Php5 Ubuntu esm-infra-legacy/trusty *
Php5 Ubuntu precise *
Php5 Ubuntu trusty *
Php5 Ubuntu trusty/esm *
Php5 Ubuntu upstream *
Php5 Ubuntu wily *
Php7.0 Ubuntu esm-infra/xenial *
Php7.0 Ubuntu upstream *
Php7.0 Ubuntu xenial *

Potential Mitigations

References