Linux kernel sysctl interface denial of service
| kernel-sysctl-interface-dos (23040) |  Medium Risk |
Description:
Linux kernel is vulnerable to a denial of service caused by a vulnerability in the sysctl interface when unregistering interfaces in /proc/sys/net/ipv4/conf/. A local attacker could exploit this vulnerability to cause a denial of service condition.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Linux Kernel (2.6.14.1 or later), available from The Linux Kernel Archives Web page. See References.
For Debian GNU/Linux:
Refer to DSA-1018-2 or DSA-1017-1 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0101-9, RHSA-2006:0140-9, RHSA-2006:0190-5, or RHSA-2006:0191-9 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-219-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- The The Linux Kernel Archives Web page: The Linux Kernel Archives.
- BID-15365: Linux Kernel Sysctl Unregistration Local Denial of Service Vulnerability
- CVE-2005-2709: The sysctl functionality (sysctl.c) in Linux kernel before 2.6.14.1 allows local users to cause a denial of service (kernel oops) and possibly execute code by opening an interface file in /proc/sys/net/ipv4/conf/, waiting until the interface is unregistered, then obtaining and modifying function pointers in memory that was used for the ctl_table.
- DSA-1017: kernel-source-2.6.8 -- several vulnerabilities
- DSA-1018: kernel-source-2.4.27 -- several vulnerabilities
- MDKSA-2006:059: Updated kernel packages fix multiple vulnerabilities
- OSVDB ID: 20676: Linux Kernel sysctl Interface Unregistration Local DoS
- RHSA-2006-0101: kernel security update
- RHSA-2006-0140: kernel security update
- RHSA-2006-0190: kernel security update
- RHSA-2006-0191: kernel security update
- SA17504: Linux Kernel sysctl Interface Unregistration Denial of Service
- SECTRACK ID: 1015434: Linux Kernel sysctl() Interface Unregistration Error Lets Local Users Deny Service
- USN-219-1: Linux kernel vulnerabilities
- VUPEN/ADV-2005-2359: Linux Kernel sysctl Unregistration Denial of Service Vulnerability
Platforms Affected:
- Canonical Ubuntu 4.10
- Canonical Ubuntu 5.04
- Canonical Ubuntu 5.10
- Debian Debian Linux 3.1
- Linux Kernel 2.6.0 test1
- Linux Kernel 2.6.0 test10
- Linux Kernel 2.6.0 test11
- Linux Kernel 2.6.0 test2
- Linux Kernel 2.6.0 test3
- Linux Kernel 2.6.0 test4
- Linux Kernel 2.6.0 test5
- Linux Kernel 2.6.0 test6
- Linux Kernel 2.6.0 test7
- Linux Kernel 2.6.0 test8
- Linux Kernel 2.6.0 test9
- Linux Kernel 2.6.0
- Linux Kernel 2.6.1 rc1
- Linux Kernel 2.6.1 rc2
- Linux Kernel 2.6.1 rc3
- Linux Kernel 2.6.1
- Linux Kernel 2.6.10 rc3
- Linux Kernel 2.6.10 rc1
- Linux Kernel 2.6.10 rc2
- Linux Kernel 2.6.10
- Linux Kernel 2.6.11 rc2
- Linux Kernel 2.6.11 rc4
- Linux Kernel 2.6.11 rc3
- Linux Kernel 2.6.11 rc1
- Linux Kernel 2.6.11 rc5
- Linux Kernel 2.6.11
- Linux Kernel 2.6.11.1
- Linux Kernel 2.6.11.10
- Linux Kernel 2.6.11.11
- Linux Kernel 2.6.11.12
- Linux Kernel 2.6.11.2
- Linux Kernel 2.6.11.3
- Linux Kernel 2.6.11.4
- Linux Kernel 2.6.11.5
- Linux Kernel 2.6.11.6
- Linux Kernel 2.6.11.7
- Linux Kernel 2.6.11.8
- Linux Kernel 2.6.11.9
- Linux Kernel 2.6.12 rc3
- Linux Kernel 2.6.12 rc6
- Linux Kernel 2.6.12 rc5
- Linux Kernel 2.6.12 rc2
- Linux Kernel 2.6.12 rc1
- Linux Kernel 2.6.12 rc4
- Linux Kernel 2.6.12
- Linux Kernel 2.6.12.1
- Linux Kernel 2.6.12.12
- Linux Kernel 2.6.12.2
- Linux Kernel 2.6.12.22
- Linux Kernel 2.6.12.3
- Linux Kernel 2.6.12.4
- Linux Kernel 2.6.12.5
- Linux Kernel 2.6.12.6
- Linux Kernel 2.6.13 rc2
- Linux Kernel 2.6.13 rc1
- Linux Kernel 2.6.13 rc6
- Linux Kernel 2.6.13 rc7
- Linux Kernel 2.6.13 rc3
- Linux Kernel 2.6.13 rc4
- Linux Kernel 2.6.13 rc5
- Linux Kernel 2.6.13
- Linux Kernel 2.6.13.1
- Linux Kernel 2.6.13.2
- Linux Kernel 2.6.13.3
- Linux Kernel 2.6.13.4
- Linux Kernel 2.6.13.5
- Linux Kernel 2.6.14 rc4
- Linux Kernel 2.6.14 rc3
- Linux Kernel 2.6.14 rc5
- Linux Kernel 2.6.14 rc2
- Linux Kernel 2.6.14 rc1
- Linux Kernel 2.6.14
- Linux Kernel 2.6.2 rc1
- Linux Kernel 2.6.2 rc2
- Linux Kernel 2.6.2 rc3
- Linux Kernel 2.6.3 rc1
- Linux Kernel 2.6.3 rc2
- Linux Kernel 2.6.3 rc3
- Linux Kernel 2.6.3 rc4
- Linux Kernel 2.6.3
- Linux Kernel 2.6.4 rc1
- Linux Kernel 2.6.4 rc2
- Linux Kernel 2.6.4 rc3
- Linux Kernel 2.6.4
- Linux Kernel 2.6.5 rc1
- Linux Kernel 2.6.5 rc2
- Linux Kernel 2.6.5 rc3
- Linux Kernel 2.6.5
- Linux Kernel 2.6.6 rc1
- Linux Kernel 2.6.6 rc2
- Linux Kernel 2.6.6 rc3
- Linux Kernel 2.6.6
- Linux Kernel 2.6.7 rc1
- Linux Kernel 2.6.7 rc2
- Linux Kernel 2.6.7 rc3
- Linux Kernel 2.6.7
- Linux Kernel 2.6.8 rc2
- Linux Kernel 2.6.8 rc3
- Linux Kernel 2.6.8 rc1
- Linux Kernel 2.6.8 rc4
- Linux Kernel 2.6.8
- Linux Kernel 2.6.8.1
- Linux Kernel 2.6.9 rc2
- Linux Kernel 2.6.9 rc1
- Linux Kernel 2.6.9 rc4
- Linux Kernel 2.6.9 rc3
- Linux Kernel 2.6.9
- Linux Linux Kernel 2.6.2
- MandrakeSoft Mandrake Linux 2006
- MandrakeSoft Mandrake Linux 2006 X86_64
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 Desktop
- RedHat Linux Advanced Workstation 2.1 Itanium
Reported:
Nov 09, 2005
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