CVE Vulnerabilities

CVE-2016-9137

Use After Free

Published: Jan 04, 2017 | 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
8.1 MODERATE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
LOW

Use-after-free vulnerability in the CURLFile implementation in ext/curl/curl_file.c in PHP before 5.6.27 and 7.x before 7.0.12 allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data that is mishandled during __wakeup processing.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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 * 5.6.26 (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)
Php Php 7.0.8 (including) 7.0.8 (including)
Php Php 7.0.9 (including) 7.0.9 (including)
Php Php 7.0.10 (including) 7.0.10 (including)
Php Php 7.0.11 (including) 7.0.11 (including)
Php5 Ubuntu esm-infra-legacy/trusty *
Php5 Ubuntu trusty *
Php5 Ubuntu trusty/esm *
Php5 Ubuntu upstream *
Php7.0 Ubuntu devel *
Php7.0 Ubuntu esm-infra/xenial *
Php7.0 Ubuntu upstream *
Php7.0 Ubuntu xenial *
Php7.0 Ubuntu yakkety *

Potential Mitigations

References