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Vulnerability Details : CVE-2011-1746

Multiple integer overflows in the (1) agp_allocate_memory and (2) agp_create_user_memory functions in drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5 allow local users to trigger buffer overflows, and consequently cause a denial of service (system crash) or possibly have unspecified other impact, via vectors related to calls that specify a large number of memory pages.
Publish Date : 2011-05-09 Last Update Date : 2020-07-28
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- CVSS Scores & Vulnerability Types

CVSS Score
6.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
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 ServiceOverflow
CWE ID 189

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
6.6
AV:L/AC:M/Au:S/C:C/I:C/A:C 2011-04-21 2011-04-14
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-1746 oval:org.opensuse.security:def:20111746 unix
DEPRECATED: ELSA-2011-1350 -- kernel security, bug fix, and enhancement update (important) oval:org.mitre.oval:def:27708 unix
DEPRECATED: ELSA-2011-0927 -- kernel security and bug fix update (important) oval:org.mitre.oval:def:27865 unix
DSA-2240-1 linux-2.6 -- privilege escalation/denial of service/information leak oval:org.mitre.oval:def:13013 unix
DSA-2264-1 linux-2.6 -- privilege escalation/denial of service/information leak oval:org.mitre.oval:def:12997 unix
ELSA-2011:0927: kernel security and bug fix update (Important) oval:org.mitre.oval:def:23330 unix
ELSA-2011:1350: kernel security, bug fix, and enhancement update (Important) oval:org.mitre.oval:def:23620 unix
RHSA-2011:0927: kernel security and bug fix update (Important) oval:org.mitre.oval:def:21896 unix
RHSA-2011:0927: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20110927 unix
RHSA-2011:1350: kernel security, bug fix, and enhancement update (Important) oval:org.mitre.oval:def:21992 unix
RHSA-2011:1350: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20111350 unix
VMware ESXi and ESX updates to third party library and ESX Service Console oval:org.mitre.oval:def:20234 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-2011-1746

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
2 OS Redhat Enterprise Linux 5.0 * * * Version Details Vulnerabilities
3 OS Redhat Enterprise Linux Aus 5.6 * * * Version Details Vulnerabilities
4 OS Redhat Enterprise Linux Desktop 5.0 * * * Version Details Vulnerabilities
5 OS Redhat Enterprise Linux Eus 5.6 * * * Version Details Vulnerabilities
6 OS Redhat Enterprise Linux Server 5.0 * * * Version Details Vulnerabilities
7 OS Redhat Enterprise Linux Workstation 5.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1
Redhat Enterprise Linux 1
Redhat Enterprise Linux Aus 1
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Eus 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Workstation 1

- References For CVE-2011-1746

https://lkml.org/lkml/2011/4/14/294
MLIST [linux-kernel] 20110414 [PATCH] char: agp: fix OOM and buffer overflow
https://lkml.org/lkml/2011/4/19/400
MLIST [linux-kernel] 20110419 Re: [PATCH] char: agp: fix OOM and buffer overflow
http://openwall.com/lists/oss-security/2011/04/22/7
MLIST [oss-security] 20110422 Re: CVE request: kernel: buffer overflow and DoS issues in agp
http://openwall.com/lists/oss-security/2011/04/21/4
MLIST [oss-security] 20110421 CVE request: kernel: buffer overflow and DoS issues in agp
https://bugzilla.redhat.com/show_bug.cgi?id=698998 CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b522f02184b413955f3bc952e3776ce41edc6355 CONFIRM
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5 CONFIRM
http://www.securityfocus.com/bid/47535
BID 47535 Linux Kernel 'agp_allocate_memory/agp_create_user_memory' Local Privilege Escalation Vulnerabilities Release Date:2012-09-21
http://rhn.redhat.com/errata/RHSA-2011-0927.html
REDHAT RHSA-2011:0927

- Metasploit Modules Related To CVE-2011-1746

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


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