kernel: rxrpc: race condition between connection bundle lookup and removal
Published Apr 24, 2023
8.8
HIGHCVSS 3.1
EPSS 0.36%
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.
Affected products
- Vendor n/a Product Linux kernel's RxRPC network protocol Defaultn/a
- Version Fixed in kernel v6.1-rc7StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Linux kernel's RxRPC network protocol | n/a |
|
Configuration 1
- ≥ 5.10 · < 5.10.157
- ≥ 5.11 · < 5.15.81
- ≥ 5.16 · < 6.0.11
Configuration 2
- h300s
- h410c
- h410s
- h500s
- h700s
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 6, 7, 8 and 9 are not affected by this flaw as they did not include support for the RxRPC network protocol (CONFIG_AF_RXRPC is not set).
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Apr 23, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (6 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.36% (0.00363) | 27.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00363) | 27.97th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00020) | 3.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00046) | 19.16th | v3 (v2023.03.01) |
| May 8, 2024 | 0.05% (0.00046) | 16.21th | v3 (v2023.03.01) |
| Apr 25, 2023 | 0.05% (0.00047) | 14.20th | v3 (v2023.03.01) |
References (7)
- https://access.redhat.com/security/cve/CVE-2023-2006 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2189112 Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/3bcd6c7eaa53 Patch
- https://nvd.nist.gov/vuln/detail/CVE-2023-2006
- https://security.netapp.com/advisory/ntap-20230609-0004/ PatchThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2023-2006
- https://www.zerodayinitiative.com/advisories/ZDI-23-439/ Third Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-2006 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2189112 | Issue TrackingPatchThird Party Advisory | |
| https://github.com/torvalds/linux/commit/3bcd6c7eaa53 | Patch | |
| https://nvd.nist.gov/vuln/detail/CVE-2023-2006 | ||
| https://security.netapp.com/advisory/ntap-20230609-0004/ | PatchThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2023-2006 | ||
| https://www.zerodayinitiative.com/advisories/ZDI-23-439/ | Third Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.