CVE-2013-4788 EXPLOIT
5.1
MEDIUM · CVSS 2.0 · EPSS 11.4% (pctl 96)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.1 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:H/Au:N/C:P/I:P/A:P |
| EPSS | 11.43% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2013-10-04 |
| Last modified | 2026-06-16 |
Affected (2)
| Vendor | Product |
|---|---|
| gnu | eglibc |
| gnu | glibc |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | glibc and eglibc 2.5/2.7/2.13 - Local Buffer Overflow | 2013-09-30 |
References
- http://hmarco.org/bugs/CVE-2013-4788.html
- http://seclists.org/fulldisclosure/2015/Sep/23
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:284
- http://www.openwall.com/lists/oss-security/2013/07/15/9
- http://www.securityfocus.com/bid/61183
- https://security.gentoo.org/glsa/201503-04
- http://hmarco.org/bugs/CVE-2013-4788.html
- http://seclists.org/fulldisclosure/2015/Sep/23
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:284
- http://www.openwall.com/lists/oss-security/2013/07/15/9
- http://www.securityfocus.com/bid/61183
- https://security.gentoo.org/glsa/201503-04
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