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CVE-2023-52845

17
FAUCET Score

CVE-2023-52845 is an uninitialized value vulnerability in the Linux kernel's TIPC (Transparent Inter-Process Communication) module. Specifically, it affects how bearer-related names are handled, allowing for potential buffer overruns if non-null-terminated strings are passed via netlink. This issue has been resolved by enforcing null-termination for these strings. Rated as Medium severity (CVSS 5.5), the vulnerability requires local access and low privileges (AV:L/PR:L) to trigger, leading to high availability impact (A:H) through system crashes or denial of service. The attack complexity is low, as it exploits a fundamental data handling flaw. Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage around this CVE are minimal, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.19, < 4.14.330CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.299CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.261CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.201CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.139CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 72nd percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-553.16.1.rt7.357.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-553.16.1.el8_10
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-52845Low

kernel: tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING

May 21, 2024

References

git.kernel.org / stable/c/19b3f72a41a8751e26bffc093bb7e1cef29ad579
Patch
git.kernel.org / stable/c/2199260c42e6fbc5af8adae3bf78e623407c91b0
Patch
git.kernel.org / stable/c/2426425d686b43adbc4f2f4a367b494f06f159d6
Patch
git.kernel.org / stable/c/3907b89cd17fcc23e9a80789c36856f00ece0ba8
Patch
git.kernel.org / stable/c/4c731e98fe4d678e87ba3e4d45d3cf0a5a193dc4
Patch
git.kernel.org / stable/c/560992f41c0cea44b7603bc9e6c73bffbf6b5709
Patch
git.kernel.org / stable/c/6744008c354bca2e4686a5b6056ee6b535d9f67d
Patch
git.kernel.org / stable/c/abc1582119e8c4af14cedb0db6541fd603f45a04
Patch
git.kernel.org / stable/c/b33d130f07f1decd756b849ab03c23d11d4dd294
Patch