8.8

CVE-2023-52530: wifi: mac80211: fix potential key use-after-free

Modified
AliasesUBUNTU-CVE-2023-52530DEBIAN-CVE-2023-52530
Published 02-03-2024Last modified 05-08-2026

Vulnerability summary

CVE-2023-52530 is a high (CVSS 8.8) Use After Free vulnerability in linux. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 27.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.34%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 27 · Related 22
DLA-4075-1RHSA-2024:3859RHSA-2024:4740RHSA-2024:5101RHSA-2024:5102SUSE-SU-2024:0855-1

Timeline

  1. 02-03-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix potential key use-after-free When ieee80211_key_link() is called by ieee80211_gtk_rekey_add() but returns 0 due to KRACK protection (identical key reinstall), ieee80211_gtk_rekey_add() will still return a pointer into the key, in a potential use-after-free. This normally doesn't happen since it's only called by iwlwifi in case of WoWLAN rekey offload which has its own KRACK protection, but still better to fix, do that by returning an error code and converting that to success on the cfg80211 boundary only, leaving the error for bad callers of ieee80211_gtk_rekey_add().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.34% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu114 products
  • linux< 4.4.0-254.288 | < 4.15.0-225.237 | < 5.4.0-182.202 | < 5.15.0-107.117
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1131.137 | < 4.4.0-1169.184 | < 4.15.0-1168.181 | < 5.4.0-1125.135 | < 5.15.0-1062.68
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ fdf7cb4185b60c68e1a75e61691c4afdc15dea0e, < 2408f491ff998d674707725eadc47d8930aced09 | ≥ fdf7cb4185b60c68e1a75e61691c4afdc15dea0e, < e8e599a635066c50ac214c3e10858f1d37e03022 | ≥ fdf7cb4185b60c68e1a75e61691c4afdc15dea0e, < e8a834eb09bb95c2bf9c76f1a28ecef7d8c439d0 | ≥ fdf7cb4185b60c68e1a75e61691c4afdc15dea0e, < 2f4e16e39e4f5e78248dd9e51276a83203950b36 | ≥ fdf7cb4185b60c68e1a75e61691c4afdc15dea0e, < 65c72a7201704574dace708cbc96a8f367b1491d | ≥ fdf7cb4185b60c68e1a75e61691c4afdc15dea0e, < 31db78a4923ef5e2008f2eed321811ca79e7f71b | ef810e7c3d2a8fb3bbd23726599c487c30ea747e | a0a8a11d1630cd648dc1ce86da620b4e240e0315 | 6891c6fd2a500d1f39d1426765f610bdc2c2a39d | 003aa22c9619b49efe950aca3aebd1235a04940d | 6440f0ee8a1779f53526bccb9de00914daeb9094 | 2586fa0007dc6b7745da14250be7e3aae706b128 | a9ab1b2e30e898440a22d7b1d7a5b0b7c6a8791f | ≥ 3.2.95, < 3.3 | ≥ 3.16.50, < 3.17 | ≥ 3.18.82, < 3.19 | ≥ 4.1.47, < 4.2 | ≥ 4.4.99, < 4.5 | ≥ 4.9.63, < 4.10 | ≥ 4.13.14, < 4.14 | 4.14
  • linux_kernel≥ 4.14, < 5.4.285 | ≥ 5.5, < 5.10.288 | ≥ 5.11, < 5.15.169 | ≥ 5.16, < 6.1.57 | ≥ 6.2, < 6.5.7 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4
Debian1 product
  • linux< 6.1.64-1 | < 6.5.8-1

3 vendors · 117 products

References

21 links
Show all 21 references