CVE-2011-1020

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.

• CWE-200

• http://openwall.com/lists/oss-security/2011/02/24/18Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2011/02/25/2Mailing List, Third Party Advisory
• http://seclists.org/fulldisclosure/2011/Jan/421Exploit, Mailing List, Third Party Advisory
• http://secunia.com/advisories/43496Third Party Advisory
• http://securityreason.com/securityalert/8107Third Party Advisory
• http://www.halfdog.net/Security/2011/SuidBinariesAndProcInterface/Exploit, Third Party Advisory
• http://www.securityfocus.com/bid/46567Third Party Advisory, VDB Entry
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65693Third Party Advisory, VDB Entry
• https://lkml.org/lkml/2011/2/10/21Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/368Exploit, Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/404Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/414Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/466Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/474Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/9/417Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2011/02/24/18Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2011/02/25/2Mailing List, Third Party Advisory
• http://seclists.org/fulldisclosure/2011/Jan/421Exploit, Mailing List, Third Party Advisory
• http://secunia.com/advisories/43496Third Party Advisory
• http://securityreason.com/securityalert/8107Third Party Advisory
• http://www.halfdog.net/Security/2011/SuidBinariesAndProcInterface/Exploit, Third Party Advisory
• http://www.securityfocus.com/bid/46567Third Party Advisory, VDB Entry
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65693Third Party Advisory, VDB Entry
• https://lkml.org/lkml/2011/2/10/21Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/368Exploit, Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/404Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/414Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/466Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/7/474Mailing List, Third Party Advisory
• https://lkml.org/lkml/2011/2/9/417Mailing List, Third Party Advisory

Published

Feb 28, 2011

Last Modified

Jun 16, 2026

Status

Modified

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