National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2008-1026 Detail


Integer overflow in the PCRE regular expression compiler (JavaScriptCore/pcre/pcre_compile.cpp) in Apple WebKit, as used in Safari before 3.1.1, allows remote attackers to execute arbitrary code via a regular expression with large, nested repetition counts, which triggers a heap-based buffer overflow.

Source:  MITRE      Last Modified:  01/19/2017

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
(AV:N/AC:M/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable - Victim must voluntarily interact with attack mechanism
Access Complexity:
Not required to exploit
Impact Type:
Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/24/2008)

Not vulnerable. This issue did not affect versions of pcre as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to

Hyperlink Resource Type Source Name External Source APPLE APPLE-SA-2008-07-11 External Source APPLE APPLE-SA-2008-04-16 External Source SREASON 3815 Patch External Source CONFIRM External Source BUGTRAQ 20080416 ZDI-08-022: Apple Safari WebKit PCRE Handling Integer Overflow Vulnerability External Source BID 28815 External Source SECTRACK 1019870 External Source VUPEN ADV-2008-1250 External Source VUPEN ADV-2008-2094 Patch External Source MISC External Source XF apple-safari-webkit-pcrecompile-bo(41859)

Technical Details

Vulnerability Type (View All)

Change History 4 change records found - show changes