Linux Kernel 2.6.16.9 ib_uverbs_poll_cq memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

A vulnerability was found in Linux Kernel 2.6.16.9 (Operating System). It has been classified as problematic. Affected is the function ib_uverbs_poll_cq. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality. CVE summarizes:

The ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel before 2.6.37 does not initialize a certain response buffer, which allows local users to obtain potentially sensitive information from kernel memory via vectors that cause this buffer to be only partially filled, a different vulnerability than CVE-2010-4649.

The issue has been introduced in 03/20/2006. The weakness was shared 02/18/2011 by Dan Carpenter as Bug 667916 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2011-1044 since 02/18/2011. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/17/2021).

The vulnerability was handled as a non-public zero-day exploit for at least 1796 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 55609 (CentOS 5 : kernel (CESA-2011:0927)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165420 (SUSE Enterprise Linux Security Update for Linux Kernel (SUSE-SU-2012:1391-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (65563) and Tenable (55609). The entries 5655, 56652, 56540 and 57395 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55609
Nessus Name: CentOS 5 : kernel (CESA-2011:0927)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 880545
OpenVAS Name: CentOS Update for kernel CESA-2011:0927 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: 7182afea8d1afd432a17c18162cc3fd441d0da93

Timelineinfo

03/20/2006 🔍
02/18/2011 +1796 days 🔍
02/18/2011 +0 days 🔍
02/18/2011 +0 days 🔍
02/18/2011 +0 days 🔍
02/22/2011 +4 days 🔍
03/09/2011 +15 days 🔍
03/20/2015 +1472 days 🔍
10/17/2021 +2403 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 667916
Researcher: Dan Carpenter
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1044 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 65563
Vulnerability Center: 30266 - Linux Kernel Prior to 2.6.37 Local Information Disclosure Vulnerability, Medium
SecurityFocus: 46488 - Linux Kernel 'ib_uverbs_poll_cq()' Function Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 03/20/2015 16:16
Updated: 10/17/2021 14:07
Changes: 03/20/2015 16:16 (65), 03/18/2017 08:04 (14), 10/17/2021 14:00 (4), 10/17/2021 14:07 (1)
Complete: 🔍

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