Linux Kernel 6.1.x skb_shared_info size integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel 6.1.x and classified as critical. This issue affects the function skb_shared_info. Such manipulation of the argument size leads to integer overflow. This vulnerability is documented as CVE-2023-42752. The attack needs to be performed locally. Additionally, an exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 6.1.x (Operating System) and classified as critical. Affected by this issue is the function skb_shared_info. The manipulation of the argument size with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is availability.

The weakness was released 09/19/2023. The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2023-42752 since 09/13/2023. Technical details as well as a public exploit are known.

The exploit is available at seclists.org. It is declared as proof-of-concept.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.7
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/13/2023 🔍
09/19/2023 +6 days 🔍
09/19/2023 +0 days 🔍
09/19/2023 +0 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: seclists.org
Status: Confirmed

CVE: CVE-2023-42752 (🔍)
GCVE (CVE): GCVE-0-2023-42752
GCVE (VulDB): GCVE-100-239936
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/19/2023 14:34
Changes: 09/19/2023 14:34 (44)
Complete: 🔍
Cache ID: 216::103

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