Vulnerability Details : CVE-2014-9769
pcre_jit_compile.c in PCRE 8.35 does not properly use table jumps to optimize nested alternatives, which allows remote attackers to cause a denial of service (stack memory corruption) or possibly have unspecified other impact via a crafted string, as demonstrated by packets encountered by Suricata during use of a regular expression in an Emerging Threats Open ruleset.
Vulnerability category: OverflowMemory CorruptionDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2014-9769
Probability of exploitation activity in the next 30 days: 0.87%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 80 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2014-9769
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
|
7.3
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
3.9
|
3.4
|
NIST |
CWE ids for CVE-2014-9769
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-9769
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https://redmine.openinfosecfoundation.org/issues/1693
Bug #1693: Crash on Debian with libpcre 8.35 - Suricata - Open Information Security Foundation
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https://bugs.debian.org/819050
#819050 - pcre3: CVE-2014-9769: Segmentation fault on certain input to regular expressions with nested alternatives when JIT is used - Debian Bug report logs
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http://www.securitytracker.com/id/1035424
PCRE Bug in 'pcre_jit_compile.c' Lets Remote Users Deny Service - SecurityTracker
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http://www.openwall.com/lists/oss-security/2016/03/26/1
oss-security - CVE Request: pcre: Segmentation fault on certain input to regular expressions with nested alternatives when JIT is used
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http://www.securityfocus.com/bid/85570
PCRE 'pcre_jit_compile.c' Denial of Service Vulnerability
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http://vcs.pcre.org/pcre?view=revision&revision=1475
ViewVC Exception
Products affected by CVE-2014-9769
- cpe:2.3:a:pcre:pcre:8.35:*:*:*:*:*:*:*