National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2013-4788 Detail

Current Description

The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC (EGLIBC) does not initialize the random value for the pointer guard, which makes it easier for context-dependent attackers to control execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address.

Source:  MITRE      Last Modified:  10/04/2013      View Analysis Description

Evaluator Description

Additional information that was taken into consideration while scoring: https://bugzilla.redhat.com/show_bug.cgi?id=985625

Quick Info

CVE Dictionary Entry:
CVE-2013-4788
Original release date:
10/04/2013
Last revised:
06/30/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
5.1 MEDIUM
Vector:
(AV:N/AC:H/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
4.9
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
High
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://hmarco.org/bugs/CVE-2013-4788.html Exploit; Patch External Source MISC http://hmarco.org/bugs/CVE-2013-4788.html
http://seclists.org/fulldisclosure/2015/Sep/23 External Source FULLDISC 20150907 Glibc Pointer guarding weakness
http://www.mandriva.com/security/advisories?name=MDVSA-2013:283 External Source MANDRIVA MDVSA-2013:283
http://www.mandriva.com/security/advisories?name=MDVSA-2013:284 External Source MANDRIVA MDVSA-2013:284
http://www.openwall.com/lists/oss-security/2013/07/15/9 Exploit; Patch External Source MLIST [oss-security] 20130716 Re: CVE-2013-4788 - Eglibc PTR MANGLE bug
http://www.securityfocus.com/bid/61183 External Source BID 61183
https://security.gentoo.org/glsa/201503-04 External Source GENTOO GLSA-201503-04

Technical Details

Vulnerability Type (View All)

Change History 4 change records found - show changes