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Vulnerability Details : CVE-2009-2848

The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.
Publish Date : 2009-08-18 Last Update Date : 2020-08-28
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- CVSS Scores & Vulnerability Types

CVSS Score
5.9
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceGain privilegesMemory corruption
CWE ID 269

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
7.2
AV:L/AC:L/Au:N/C:C/I:C/A:C 2009-08-04 2009-07-31
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-2848 oval:org.opensuse.security:def:20092848 unix
DSA-1872 linux-2.6 -- denial of service/privilege escalation/information leak oval:org.mitre.oval:def:8168 unix
DSA-1872-1 linux-2.6 -- denial of service/privilege escalation/information leak oval:org.mitre.oval:def:13505 unix
DSA-1928 linux-2.6.24 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:7937 unix
DSA-1928-1 linux-2.6.24 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:13351 unix
ELSA-2009:1243: Oracle Linux 5.x.4 kernel security and bug fix update (Important) oval:org.mitre.oval:def:21973 unix
RHSA-2009:1243 -- Red Hat Enterprise Linux 5.4 kernel security and bug fix update (Important) oval:org.mitre.oval:def:29153 unix
RHSA-2009:1243: Red Hat Enterprise Linux 5.4 kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20091243 unix
RHSA-2009:1438: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20091438 unix
RHSA-2009:1550: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20091550 unix
Service Console update for COS kernel oval:org.mitre.oval:def:11412 unix
The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current-clear_chil... oval:org.mitre.oval:def:9766 unix
VMware kernel execve function vulnerability oval:org.mitre.oval:def:8598 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-2848

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 6.06 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 8.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 8.10 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 9.04 * * * Version Details Vulnerabilities
5 OS Fedoraproject Fedora 11 * * * Version Details Vulnerabilities
6 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
7 OS Linux Linux Kernel 2.6.30 RC2 * * Version Details Vulnerabilities
8 OS Linux Linux Kernel 2.6.30 RC3 * * Version Details Vulnerabilities
9 OS Linux Linux Kernel 2.6.30 RC4 * * Version Details Vulnerabilities
10 OS Linux Linux Kernel 2.6.30 RC5 * * Version Details Vulnerabilities
11 OS Linux Linux Kernel 2.6.30 - * * Version Details Vulnerabilities
12 OS Linux Linux Kernel 2.6.30 RC6 * * Version Details Vulnerabilities
13 OS Linux Linux Kernel 2.6.30 RC1 * * Version Details Vulnerabilities
14 OS Novell Linux Desktop 9 * * * Version Details Vulnerabilities
15 OS Opensuse Opensuse 11.0 * * * Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Desktop 3.0 * * * Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Desktop 5.0 * * * Version Details Vulnerabilities
18 OS Redhat Enterprise Linux Server 3.0 * * * Version Details Vulnerabilities
19 OS Redhat Enterprise Linux Server 5.0 * * * Version Details Vulnerabilities
20 OS Redhat Enterprise Linux Workstation 3.0 * * * Version Details Vulnerabilities
21 OS Redhat Enterprise Linux Workstation 5.0 * * * Version Details Vulnerabilities
22 OS Suse Linux Enterprise Desktop 10 SP2 * * Version Details Vulnerabilities
23 OS Suse Linux Enterprise Server 9 * * * Version Details Vulnerabilities
24 OS Suse Linux Enterprise Server 10 SP2 * * Version Details Vulnerabilities
25 OS Vmware ESX 4.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Fedoraproject Fedora 1
Linux Linux Kernel 8
Novell Linux Desktop 1
Opensuse Opensuse 1
Redhat Enterprise Linux Desktop 2
Redhat Enterprise Linux Server 2
Redhat Enterprise Linux Workstation 2
Suse Linux Enterprise Desktop 1
Suse Linux Enterprise Server 2
Vmware ESX 1

- References For CVE-2009-2848

http://rhn.redhat.com/errata/RHSA-2009-1243.html
REDHAT RHSA-2009:1243
http://secunia.com/advisories/35983
SECUNIA 35983
http://secunia.com/advisories/36759
SECUNIA 36759
http://www.redhat.com/support/errata/RHSA-2009-1438.html
REDHAT RHSA-2009:1438
https://rhn.redhat.com/errata/RHSA-2009-1550.html
REDHAT RHSA-2009:1550
http://secunia.com/advisories/37351
SECUNIA 37351
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
SUSE SUSE-SA:2009:056
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html
SUSE SUSE-SA:2009:054
http://www.vmware.com/security/advisories/VMSA-2009-0016.html CONFIRM
http://www.vupen.com/english/advisories/2009/3316
VUPEN ADV-2009-3316
http://secunia.com/advisories/37471
SECUNIA 37471
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
SUSE SUSE-SA:2010:012
http://www.ubuntu.com/usn/USN-852-1
UBUNTU USN-852-1
http://secunia.com/advisories/37105
SECUNIA 37105
http://secunia.com/advisories/36501
SECUNIA 36501
http://secunia.com/advisories/36562
SECUNIA 36562
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html
FEDORA FEDORA-2009-9044
http://article.gmane.org/gmane.linux.kernel/871942
MLIST [linux-kernel] 20090801 [PATCH v2] execve: must clear current->clear_child_tid
http://www.openwall.com/lists/oss-security/2009/08/05/10
MLIST [oss-security] 20090805 Re: CVE request - kernel: execve: must clear current->clear_child_tid
http://www.openwall.com/lists/oss-security/2009/08/04/2
MLIST [oss-security] 20090804 CVE request - kernel: execve: must clear current->clear_child_tid
https://exchange.xforce.ibmcloud.com/vulnerabilities/52899
XF kernel-execve-dos(52899)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9766
OVAL oval:org.mitre.oval:def:9766
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8598
OVAL oval:org.mitre.oval:def:8598
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11412
OVAL oval:org.mitre.oval:def:11412
http://www.securityfocus.com/archive/1/512019/100/0/threaded
BUGTRAQ 20100625 VMSA-2010-0010 ESX 3.5 third party update for Service Console kernel
http://www.securityfocus.com/archive/1/507985/100/0/threaded
BUGTRAQ 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2009-2848

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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