National Cyber-Alert System
Vulnerability Summary for CVE-2009-1337
Original release date:04/22/2009
Last revised:06/23/2009
Source:
US-CERT/NIST
Overview
The exit_notify function in kernel/exit.c in the Linux kernel before 2.6.30-rc1 does not restrict exit signals when the CAP_KILL capability is held, which allows local users to send an arbitrary signal to a process by running a program that modifies the exit_signal field and then uses an exec system call to launch a setuid application.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: http://patchwork.kernel.org/patch/16544/
Type: Patch Information
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=432870dab85a2f69dc417022646cb9a70acf7f94
Type: Advisory; Patch Information
External Source: FEDORA
Name: FEDORA-2009-5356
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=493771
External Source: SECTRACK
Name: 1022141
External Source: BID
Name: 34405
External Source: BUGTRAQ
Name: 20090516 rPSA-2009-0084-1 kernel
External Source: REDHAT
Name: RHSA-2009:1077
External Source: REDHAT
Name: RHSA-2009:1024
External Source: REDHAT
Name: RHSA-2009:0451
External Source: MLIST
Name: [oss-security] 20090417 Re: CVE request: kernel: exit_notify: kill the wrong capable(CAP_KILL) check
External Source: MLIST
Name: [oss-security] 20090407 CVE request: kernel: exit_notify: kill the wrong capable(CAP_KILL) check
External Source: MANDRIVA
Name: MDVSA-2009:135
External Source: MANDRIVA
Name: MDVSA-2009:119
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc1
Type: Advisory
External Source: DEBIAN
Name: DSA-1800
External Source: DEBIAN
Name: DSA-1794
External Source: DEBIAN
Name: DSA-1787
External Source: CONFIRM
Name: http://wiki.rpath.com/Advisories:rPSA-2009-0084
External Source: SECUNIA
Name: 35394
External Source: SECUNIA
Name: 35390
External Source: SECUNIA
Name: 35387
External Source: SECUNIA
Name: 35226
External Source: SECUNIA
Name: 35185
External Source: SECUNIA
Name: 35160
External Source: SECUNIA
Name: 35121
External Source: SECUNIA
Name: 35120
External Source: SECUNIA
Name: 35015
External Source: SECUNIA
Name: 35011
External Source: SECUNIA
Name: 34981
External Source: SECUNIA
Name: 34917
External Source: REDHAT
Name: RHSA-2009:0473
External Source: MLIST
Name: [linux-kernel] 20090225 Re: [PATCH 2/2] exit_notify: kill the wrong capable(CAP_KILL) check
External Source: SUSE
Name: SUSE-SA:2009:032
External Source: SUSE
Name: SUSE-SA:2009:031
External Source: SUSE
Name: SUSE-SA:2009:030
External Source: SUSE
Name: SUSE-SA:2009:028
