CVE-2014-4699 EXPLOIT
6.9
MEDIUM · CVSS 2.0 · EPSS 2.3% (pctl 83)
Patch early
A public exploit exists.
Description
The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service (double fault), via a crafted application that makes ptrace and fork system calls.
Scoring
| CVSS | 6.9 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:M/Au:N/C:C/I:C/A:C |
| EPSS | 2.32% — more likely to be exploited than 83% of all CVEs |
| Weakness | CWE-362 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2014-07-09 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel < 3.2.0-23 (Ubuntu 12.04 x64) - 'ptrace/sysret' Local Privilege Escalation | 2014-07-21 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43a
- http://linux.oracle.com/errata/ELSA-2014-0924.html
- http://linux.oracle.com/errata/ELSA-2014-3047.html
- http://linux.oracle.com/errata/ELSA-2014-3048.html
- http://openwall.com/lists/oss-security/2014/07/05/4
- http://openwall.com/lists/oss-security/2014/07/08/16
- http://openwall.com/lists/oss-security/2014/07/08/5
- http://packetstormsecurity.com/files/127573/Linux-Kernel-ptrace-sysret-Local-Privilege-Escalation.html
- http://secunia.com/advisories/59633
- http://secunia.com/advisories/59639
- http://secunia.com/advisories/59654
- http://secunia.com/advisories/60220
- http://secunia.com/advisories/60380
- http://secunia.com/advisories/60393
- http://www.debian.org/security/2014/dsa-2972
- http://www.exploit-db.com/exploits/34134
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.4
- http://www.openwall.com/lists/oss-security/2014/07/04/4
- http://www.osvdb.org/108754
- http://www.ubuntu.com/usn/USN-2266-1
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