full-disclosure - [FD] Buffer Overflow in function match() PCRE 8.41 (CVE-2017-16231)

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Message-ID: <tencent_A786522C4D809AC127F67E2097EFD95D2406@qq.com>
Date: Thu, 20 Dec 2018 09:12:12 +0800
From: "zzt0907" <16362505@...com>
To: "fulldisclosure" <fulldisclosure@...lists.org>
Subject: [FD] Buffer Overflow in function match() PCRE 8.41 (CVE-2017-16231)

# Buffer Overflow in function match() PCRE 8.41 (CVE-2017-16231)
## Product Download: https://sourceforge.net/projects/pcre/files/pcre/
## Vulnerability Type：Buffer Overflow
## Attack Type : local
## Vulnerability Description
a pcretest load test PoC produces a crash overflow in the function match() in pcre_exec.c because of a self-recursive call
> file:pcre_exec.c
> function match() line 983 and line 2061
## POC
https://github.com/followboy1999/poc/tree/master/CVE-2017-16231
./pcretest pcre_poc.txt
## Versions:PCRE 8.41
## Impact:Denial of Service
## Credit
This vulnerability was discovered by Jiawang Zhang Coordination Center of China (CNCERT/CC)
## References
CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16231

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