Vulnerability Description
The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, which allows local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write system calls.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.37 |
Related Weaknesses (CWE)
References
- http://openwall.com/lists/oss-security/2011/02/24/18Mailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/02/25/2Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2011/Jan/421ExploitMailing ListThird Party Advisory
- http://secunia.com/advisories/43496Third Party Advisory
- http://securityreason.com/securityalert/8107Third Party Advisory
- http://www.halfdog.net/Security/2011/SuidBinariesAndProcInterface/ExploitThird Party Advisory
- http://www.securityfocus.com/bid/46567Third Party AdvisoryVDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65693Third Party AdvisoryVDB Entry
- https://lkml.org/lkml/2011/2/10/21Mailing ListThird Party Advisory
- https://lkml.org/lkml/2011/2/7/368ExploitMailing ListThird Party Advisory
- https://lkml.org/lkml/2011/2/7/404Mailing ListThird Party Advisory
- https://lkml.org/lkml/2011/2/7/414Mailing ListThird Party Advisory
- https://lkml.org/lkml/2011/2/7/466Mailing ListThird Party Advisory
- https://lkml.org/lkml/2011/2/7/474Mailing ListThird Party Advisory
- https://lkml.org/lkml/2011/2/9/417Mailing ListThird Party Advisory
FAQ
What is CVE-2011-1020?
CVE-2011-1020 is a vulnerability with a CVSS score of 4.6 (MEDIUM). The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, whi...
How severe is CVE-2011-1020?
CVE-2011-1020 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1020?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.