Linux Kernel 2.6.21 Rc4 hrtimer.c hrtimer_forward numeric error

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel 2.6.21 Rc4. This impacts the function hrtimer_forward of the file hrtimer.c. Such manipulation leads to numeric error. This vulnerability is referenced as CVE-2007-6712. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.21 Rc4 (Operating System). It has been rated as problematic. Affected by this issue is the function hrtimer_forward of the file hrtimer.c. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is availability. CVE summarizes:

Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.

The bug was discovered 03/16/2008. The weakness was published 04/12/2008 (Website). The advisory is available at xforce.iss.net. This vulnerability is handled as CVE-2007-6712 since 04/12/2008. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 352 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 32448 (Debian DSA-1588-1 : linux-2.6 - denial of service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117311 (CentOS Security Update for Kernel (CESA-2008:0275)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (41827), Tenable (32448), SecurityFocus (BID 29294†), OSVDB (44688†) and Secunia (SA30294†). Similar entries are available at VDB-38960 and VDB-42570. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 32448
Nessus Name: Debian DSA-1588-1 : linux-2.6 - denial of service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61103
OpenVAS Name: Debian Security Advisory DSA 1588-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

04/26/2007 🔍
03/16/2008 +325 days 🔍
03/16/2008 +0 days 🔍
04/12/2008 +27 days 🔍
04/12/2008 +0 days 🔍
04/12/2008 +0 days 🔍
05/20/2008 +38 days 🔍
05/25/2008 +5 days 🔍
05/27/2008 +2 days 🔍
05/28/2008 +1 days 🔍
03/16/2015 +2483 days 🔍
08/10/2019 +1608 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: xforce.iss.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-6712 (🔍)
GCVE (CVE): GCVE-0-2007-6712
GCVE (VulDB): GCVE-100-41930

OVAL: 🔍

X-Force: 41827
SecurityFocus: 29294 - Linux Kernel 'hrtimer_forward()' Local Denial of Service Vulnerability
Secunia: 30294
OSVDB: 44688 - Linux - Kernel - 'hrtimer_forward()' Local Denial of Service Issue
Vulnerability Center: 18451 - Linux Kernel Hrtimer.c Integer Overflow Allows Local Users to Cause a Denial of Service, Low

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/10/2019 16:24
Changes: 03/16/2015 17:00 (78), 08/10/2019 16:24 (8)
Complete: 🔍
Cache ID: 216::103

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