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4.4
CVSSv2

CVE-2009-1337

Published: 22/04/2009 Updated: 07/11/2023
CVSS v2 Base Score: 4.4 | Impact Score: 6.4 | Exploitability Score: 3.4
VMScore: 445
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
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Vulnerability Summary

The exit_notify function in kernel/exit.c in the Linux kernel prior to 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.

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Vendor Advisories

Ubuntu Security Notice: linux, linux-source-2.6.15 vulnerabilities
Igor Zhbanov discovered that NFS clients were able to create device nodes even when root_squash was enabled An authenticated remote attacker could create device nodes with open permissions, leading to a loss of privacy or escalation of privileges Only Ubuntu 810 and 904 were affected (CVE-2009-1072) ...
Red Hat: Important: Red Hat Enterprise Linux 4.8 kernel security and bug fix update
Synopsis Important: Red Hat Enterprise Linux 48 kernel security and bug fix update Type/Severity Security Advisory: Important Topic Updated kernel packages are now available as part of the ongoing supportand maintenance of Red Hat Enterprise Linux version 4 This is the eighthregular updateThese updated p ...
Red Hat: Important: kernel security and bug fix update
Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Topic Updated kernel packages that fix two security issues and two bugs are nowavailable for Red Hat Enterprise Linux 47 Extended Update SupportThis update has been rated as having important security impact b ...
Red Hat: Important: kernel security and bug fix update
Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Topic Updated kernel packages that fix several security issues and several bugsare now available for Red Hat Enterprise Linux 5This update has been rated as having important security impact by the RedHat Secur ...
Debian Security Advisories: DSA-1787-1 linux-2.6.24 -- denial of service/privilege escalation/information leak
Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2008-4307 Bryn M Reeves reported a denial of service in the NFS filesystem Local users can trigger a kernel BUG() due to a r ...

Exploits

Exploit DB: Linux Kernel < 2.6.29 - 'exit_notify()' Local Privilege Escalation
#!/bin/sh ################################################################################### # gw-notexitsh: Linux kernel &lt;2629 exit_notify() local root exploit # # by Milen Rangelov (gat3way-at-gat3way-dot-eu) # # Based on 'exit_notify()' CAP_KILL verification bug found by Oleg Nestorov # Basically it allows us to send arbi ...

References

CWE-264http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc1http://www.openwall.com/lists/oss-security/2009/04/17/3http://patchwork.kernel.org/patch/16544/http://marc.info/?l=linux-kernel&m=123560588713763&w=2http://www.openwall.com/lists/oss-security/2009/04/07/1https://bugzilla.redhat.com/show_bug.cgi?id=493771http://www.redhat.com/support/errata/RHSA-2009-0451.htmlhttp://secunia.com/advisories/34917http://secunia.com/advisories/34981http://www.debian.org/security/2009/dsa-1787http://www.debian.org/security/2009/dsa-1794http://secunia.com/advisories/35011http://www.securitytracker.com/id?1022141http://rhn.redhat.com/errata/RHSA-2009-0473.htmlhttp://secunia.com/advisories/35015http://www.redhat.com/support/errata/RHSA-2009-1024.htmlhttp://secunia.com/advisories/35121http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.htmlhttp://www.debian.org/security/2009/dsa-1800http://wiki.rpath.com/Advisories:rPSA-2009-0084http://www.mandriva.com/security/advisories?name=MDVSA-2009:119http://secunia.com/advisories/35185https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.htmlhttp://secunia.com/advisories/35226http://secunia.com/advisories/35160http://secunia.com/advisories/35120http://www.redhat.com/support/errata/RHSA-2009-1077.htmlhttp://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.htmlhttp://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.htmlhttp://secunia.com/advisories/35390http://secunia.com/advisories/35394http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00002.htmlhttp://www.securityfocus.com/bid/34405http://www.mandriva.com/security/advisories?name=MDVSA-2009:135http://secunia.com/advisories/35387https://rhn.redhat.com/errata/RHSA-2009-1550.htmlhttp://secunia.com/advisories/37471http://www.vmware.com/security/advisories/VMSA-2009-0016.htmlhttp://www.vupen.com/english/advisories/2009/3316http://www.ubuntu.com/usn/usn-793-1http://secunia.com/advisories/35656http://secunia.com/advisories/35324https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8295https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11206https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10919http://www.securityfocus.com/archive/1/512019/100/0/threadedhttp://www.securityfocus.com/archive/1/507985/100/0/threadedhttp://www.securityfocus.com/archive/1/503610/100/0/threadedhttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=432870dab85a2f69dc417022646cb9a70acf7f94https://usn.ubuntu.com/793-1/https://nvd.nist.govhttps://www.exploit-db.com/exploits/8369/
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