Linux Kernel up to 5.9-rc6 biovecs infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.9-rc6 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component biovecs. The manipulation leads to infinite loop. This vulnerability is referenced as CVE-2020-25641. The attack can only be performed from a local environment. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.9-rc6 (Operating System). It has been rated as problematic. This issue affects an unknown part of the component biovecs. The manipulation with an unknown input leads to a infinite loop vulnerability. Using CWE to declare the problem leads to CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. Impacted is availability.

The weakness was published 10/06/2020. The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2020-25641. An attack has to be approached locally. A simple authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 208632 (CentOS 7 : kernel-alt (RHSA-2020:5079)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.9-rc7 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (208632). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
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: 208632
Nessus Name: CentOS 7 : kernel-alt (RHSA-2020:5079)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.9-rc7
Patch: git.kernel.org

Timelineinfo

09/16/2020 🔍
10/06/2020 +20 days 🔍
10/06/2020 +0 days 🔍
10/12/2024 +1466 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Status: Not defined

CVE: CVE-2020-25641 (🔍)
GCVE (CVE): GCVE-0-2020-25641
GCVE (VulDB): GCVE-100-162305

Entryinfo

Created: 10/06/2020 23:07
Updated: 10/12/2024 09:00
Changes: 10/06/2020 23:07 (1), 10/06/2020 23:08 (21), 10/06/2020 23:10 (19), 11/15/2020 10:20 (2), 11/16/2020 19:24 (2), 11/16/2020 19:29 (14), 10/12/2024 09:00 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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