Back
CVE-2013-4788
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…
Medium5.1EPSS 11.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.1 | AV:N/AC:H/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 11.4% · top 4.0% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.1.
Weakness
Affected products
n/a
- affected n/a
References (7)
- 20150907 Glibc Pointer guarding weakness (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- MDVSA-2013:284 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- [oss-security] 20130716 Re: CVE-2013-4788 - Eglibc PTR MANGLE bug (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 61183 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201503-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- MDVSA-2013:283 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- http://hmarco.org/bugs/CVE-2013-4788.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-4788)Record last updated .