7.8

CVE-2023-52475: linux Use After Free

CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2023-52475DEBIAN-CVE-2023-52475
Published 29-02-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2023-52475 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 13
RHSA-2024:9315SUSE-SU-2024:0855-1SUSE-SU-2024:0856-1SUSE-SU-2024:0857-1SUSE-SU-2024:0858-1SUSE-SU-2024:0900-1

Timeline

  1. 29-02-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Input: powermate - fix use-after-free in powermate_config_complete syzbot has found a use-after-free bug [1] in the powermate driver. This happens when the device is disconnected, which leads to a memory free from the powermate_device struct. When an asynchronous control message completes after the kfree and its callback is invoked, the lock does not exist anymore and hence the bug. Use usb_kill_urb() on pm->config to cancel any in-progress requests upon device disconnection. [1] https://syzkaller.appspot.com/bug?extid=0434ac83f907a1dbdd1e

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu115 products
  • linuxAll versions (No fix recorded) | < 5.4.0-171.189 | < 5.15.0-94.104
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1118.128 | < 5.15.0-1053.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8677575c4f39d65bf0d719b5d20e8042e550ccb9 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 67cace72606baf1758fd60feb358f4c6be92e1cc | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5aa514100aaf59868d745196258269a16737c7bd | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cd2fbfd8b922b7fdd50732e47d797754ab59cb06 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6a4a396386404e62fb59bc3bde48871a64a82b4f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2efe67c581a2a6122b328d4bb6f21b3f36f40d46 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e528b1b9d60743e0b26224e3fe7aa74c24b8b2f8 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5c15c60e7be615f05a45cd905093a54b11f461bc | 2.6.12
  • linux_kernel< 4.14.328 | ≥ 4.15, < 4.19.297 | ≥ 4.20, < 5.4.259 | ≥ 5.5, < 5.10.199 | ≥ 5.11, < 5.15.136 | ≥ 5.16, < 6.1.59 | ≥ 6.2, < 6.5.8 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4 | 6.6:rc5
Debian1 product
  • linux< 6.1.64-1 | < 6.5.8-1

3 vendors · 118 products

References

12 links
Show all 12 references