CVE-2023-2006: linux linux_kernel

Modified

AliasesUBUNTU-CVE-2023-2006DEBIAN-CVE-2023-2006

Published 24-04-2023Last modified 23-04-2025

Vulnerability summary

CVE-2023-2006 is a high (CVSS 7.0) vulnerability in linux linux_kernel. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 30.2% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (CVE.org)

EPSS score

0.36%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6

SUSE-SU-2023:4730-1 SUSE-SU-2023:4731-1 SUSE-SU-2023:4732-1 SUSE-SU-2023:4734-1 SUSE-SU-2023:4782-1 SUSE-SU-2023:4810-1

Timeline

24-04-2023
PublishedVulnerability first disclosed.
23-04-2025
Last modifiedVulnerability information updated.

Description

A race condition was found in the Linux kernel's RxRPC network protocol, within the processing of RxRPC bundles. This issue results from the lack of proper locking when performing operations on an object. This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.

CVSS metrics

4 scores · 4 sources · 1 version

v3.17.0

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.36% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu71 products

linux< 5.15.0-67.74
linux-aws< 5.15.0-1031.35
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)
linux-aws-5.13All versions (No fix recorded)

linux-aws-5.15< 5.15.0-1031.35~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.15.0-1034.41
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1034.41~20.04.1
linux-azure-5.19< 5.19.0-1021.22~22.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1034.41.1
linux-azure-fde-5.15< 5.15.0-1034.41~20.04.1.2
linux-bluefield< 5.15.0-1014.16
linux-gcpAll versions (No fix recorded) | < 5.15.0-1030.37
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1030.37~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gke< 5.15.0-1028.33
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1028.33~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.15.0-1016.21
linux-gkeop-5.15< 5.15.0-1016.21~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-67.74~20.04.1
linux-hwe-5.19< 5.19.0-35.36~22.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.15.0-1026.29
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1022.27
linux-intel-iotg< 5.15.0-1026.31
linux-intel-iotg-5.15< 5.15.0-1026.31~20.04.1
linux-kvm< 5.15.0-1029.34
linux-lowlatency< 5.15.0-67.74
linux-lowlatency-hwe-5.15< 5.15.0-67.74~20.04.1
linux-lowlatency-hwe-5.19< 5.19.0-1018.19~22.04.1
linux-nvidia< 5.15.0-1023.23
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oracle< 5.15.0-1030.36
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1030.36~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.15.0-1025.27
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1033.36
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1030.34~20.04.1
linux-riscv-5.8All versions (No fix recorded)

Show all 71

Debian1 product

linux< 6.0.12-1

Linux1 product

linux_kernel≥ 5.10, < 5.10.157 | ≥ 5.11, < 5.15.81 | ≥ 5.16, < 6.0.11

Netapp1 product

hci_baseboard_management_controllerh300s | h410c | h410s | h500s | h700s

4 vendors · 74 products

References

8 links

bugzilla.redhat.com/show_bug.cgi?id=2189112REPORTIssue TrackingPatchThird Party Advisory
www.zerodayinitiative.com/advisories/ZDI-23-439/REPORTThird Party AdvisoryVDB Entry
github.com/torvalds/linux/commit/3bcd6c7eaa53REPORTPatch
security.netapp.com/advisory/ntap-20230609-0004/PatchThird Party Advisory
ubuntu.com/security/CVE-2023-2006REPORT
www.cve.org/CVERecord?id=CVE-2023-2006REPORT
security-tracker.debian.org/tracker/CVE-2023-2006Advisory
nvd.nist.gov/vuln/detail/CVE-2023-2006OvalAdvisory