Out-of-bounds read in PCRE - CVE-2017-7244

 

Out-of-bounds read in PCRE - CVE-2017-7244

Published: July 18, 2017 / Updated: August 23, 2017


Vulnerability identifier: #VU7565
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7244
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: PCRE
Affected software:
PCRE

Detailed vulnerability description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to invalid memory read flaw in the _pcre32_xclass function in pcre_xclass.c. A remote attacker can trick the victim into loading a specially crafted file and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

How to mitigate CVE-2017-7244

Update to version 8.41 (not released at the moment)

Sources