First published: Fri Oct 04 2013(Updated: )
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.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
GNU C Library (glibc) | <=2.17 | |
GNU C Library (glibc) | =2.0 | |
GNU C Library (glibc) | =2.0.1 | |
GNU C Library (glibc) | =2.0.2 | |
GNU C Library (glibc) | =2.0.3 | |
GNU C Library (glibc) | =2.0.4 | |
GNU C Library (glibc) | =2.0.5 | |
GNU C Library (glibc) | =2.0.6 | |
GNU C Library (glibc) | =2.1 | |
GNU C Library (glibc) | =2.1.1 | |
GNU C Library (glibc) | =2.1.1.6 | |
GNU C Library (glibc) | =2.1.2 | |
GNU C Library (glibc) | =2.1.3 | |
GNU C Library (glibc) | =2.1.9 | |
GNU C Library (glibc) | =2.4 | |
GNU C Library (glibc) | =2.10.1 | |
GNU C Library (glibc) | =2.11 | |
GNU C Library (glibc) | =2.11.1 | |
GNU C Library (glibc) | =2.11.2 | |
GNU C Library (glibc) | =2.11.3 | |
GNU C Library (glibc) | =2.12.1 | |
GNU C Library (glibc) | =2.12.2 | |
GNU C Library (glibc) | =2.13 | |
GNU C Library (glibc) | =2.14 | |
GNU C Library (glibc) | =2.14.1 | |
GNU C Library (glibc) | =2.15 | |
GNU C Library (glibc) | =2.16 | |
GNU EGLIBC |
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CVE-2013-4788 has been rated as a medium severity vulnerability due to the potential for context-dependent attackers to control execution flow.
To fix CVE-2013-4788, you should upgrade your GNU C Library to version 2.18 or later.
CVE-2013-4788 affects glibc versions 2.4, 2.17, and earlier, as well as various versions of EGLIBC.
CVE-2013-4788 exploits an uninitialized random value for the pointer guard, which can lead to buffer overflow vulnerabilities.
CVE-2013-4788 is context-dependent and may require local access to exploit, but it can lead to significant risks if successfully leveraged.