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CVE-2023-52872

17
FAUCET Score

CVE-2023-52872 describes a race condition in the Linux kernel's n_gsm tty driver, specifically affecting the handling of status line changes on dead connections. This flaw can lead to a kernel panic when data is added to an outgoing queue and a timer is restarted during an ongoing cleanup procedure. With a CVSS score of 5.5 (Medium), this vulnerability requires local access and low privileges (AV:L/PR:L) to achieve a high impact on availability (A:H), resulting in a denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.15.61, < 5.15.138CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18.18, < 5.19CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.19.2, < 5.20CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.15.61, < 5.15.138CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18.18, < 5.19CPE 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
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 38th percentile among its peer group of 15,940 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

Vendor Patches (4)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-52872Moderate

kernel: tty: n_gsm: fix race condition in status line change on dead connections

May 21, 2024

References

git.kernel.org / stable/c/19d34b73234af542cc8a218cf398dee73cdb1890
Patch
git.kernel.org / stable/c/3a75b205de43365f80a33b98ec9289785da56243
Patch
git.kernel.org / stable/c/81a4dd5e6c78f5d8952fa8c9d36565db1fe01444
Patch
git.kernel.org / stable/c/ce4df90333c4fe65acb8b5089fdfe9b955ce976a
Patch
git.kernel.org / stable/c/df6cfab66ff2a44bd23ad5dd5309cb3421bb6593
Patch