Linux Kernel up to 5.15 tools/perf/util/expr.c hashmap__new return value

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 5.15. Affected is an unknown function of the file tools/perf/util/expr.c. Such manipulation of the argument hashmap__new leads to return value. This vulnerability is uniquely identified as CVE-2023-23003. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.15 (Operating System). Affected by this issue is an unknown code block of the file tools/perf/util/expr.c. The manipulation of the argument hashmap__new with an unknown input leads to a return value vulnerability. Using CWE to declare the problem leads to CWE-252. The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions. The impact remains unknown. CVE summarizes:

In the Linux kernel before 5.16, tools/perf/util/expr.c lacks a check for the hashmap__new return value.

The weakness was disclosed 03/01/2023 as 0a515a06c5ebfa46fee3ac519e418f801e718da4. The advisory is available at github.com. This vulnerability is handled as CVE-2023-23003 since 01/11/2023. Technical details are known, but there is no available exploit.

Upgrading to version 5.16 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying the patch 0a515a06c5ebfa46fee3ac519e418f801e718da4 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.0
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Return value
CWE: CWE-252 / CWE-253
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.16
Patch: 0a515a06c5ebfa46fee3ac519e418f801e718da4

Timelineinfo

01/11/2023 🔍
03/01/2023 +49 days 🔍
03/01/2023 +0 days 🔍
03/20/2025 +750 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 0a515a06c5ebfa46fee3ac519e418f801e718da4
Status: Confirmed

CVE: CVE-2023-23003 (🔍)
GCVE (CVE): GCVE-0-2023-23003
GCVE (VulDB): GCVE-100-222122

Entryinfo

Created: 03/01/2023 21:55
Updated: 03/20/2025 17:46
Changes: 03/01/2023 21:55 (45), 03/30/2023 09:01 (11), 03/20/2025 17:46 (23)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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