CVE-2023-52789: tty: vcc: Add check for kstrdup() in vcc_probe()
Vulnerability summary
CVE-2023-52789 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.9% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 10Timeline
- 21-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: tty: vcc: Add check for kstrdup() in vcc_probe() Add check for the return value of kstrdup() and return the error, if it fails in order to avoid NULL pointer dereference.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.25% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu117 products
- linuxAll versions (No fix recorded) | < 5.4.0-173.191 | < 5.15.0-100.110
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1120.130 | < 5.15.0-1056.61
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 38cd56fc9de78bf3c878790785e8c231116ef9d3 | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 909963e0c16778cec28efb1affc21558825f4200 | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 460284dfb10b207980c6f3f7046e33446ceb38ac | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 4ef41a7f33ffe1a335e7db7e1564ddc6afad47cc | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 6c80f48912b5bd4965352d1a9a989e21743a4a06 | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 7cebc86481bf16049e266f6774d90f2fd4f8d5d2 | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 4a24a31826246b15477399febd13292b0c9f0ee9 | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < 8f8771757b130383732195497e47fba2aba76d3a | ≥ 5d171050e28f823aeb040f2830da4d3422b54b63, < d81ffb87aaa75f842cd7aa57091810353755b3e6 | 4.14
- linux_kernel< 4.14.331 | ≥ 4.15, < 4.19.300 | ≥ 4.20, < 5.4.262 | ≥ 5.5, < 5.10.202 | ≥ 5.11, < 5.15.140 | ≥ 5.16, < 6.1.64 | ≥ 6.2, < 6.5.13 | ≥ 6.6, < 6.6.3
Debian1 product
- linux< 6.1.64-1 | < 6.6.8-1
3 vendors · 120 products
