// For flags

CVE-2023-52530

wifi: mac80211: fix potential key use-after-free

Severity Score

5.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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().

A use-after-free flaw was found in the Linux kernel’s IEEE 802.11 networking stack implementation functionality, used by Wifi, in how a user triggers the error path of the ieee80211_gtk_rekey_add function. This flaw allows a local user to crash the system.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-20 CVE Reserved
  • 2024-03-02 CVE Published
  • 2024-03-03 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
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>= 4.14 < 6.1.57
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.1.57"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.14 < 6.5.7
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.5.7"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.14 < 6.6
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.6"
en
Affected
Linux
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Linux Kernel
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3.2.95
Search vendor "Linux" for product "Linux Kernel" and version "3.2.95"
en
Affected
Linux
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Linux Kernel
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3.16.50
Search vendor "Linux" for product "Linux Kernel" and version "3.16.50"
en
Affected
Linux
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Linux Kernel
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3.18.82
Search vendor "Linux" for product "Linux Kernel" and version "3.18.82"
en
Affected
Linux
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Linux Kernel
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4.1.47
Search vendor "Linux" for product "Linux Kernel" and version "4.1.47"
en
Affected
Linux
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Linux Kernel
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4.4.99
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en
Affected
Linux
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Linux Kernel
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4.9.63
Search vendor "Linux" for product "Linux Kernel" and version "4.9.63"
en
Affected
Linux
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Linux Kernel
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4.13.14
Search vendor "Linux" for product "Linux Kernel" and version "4.13.14"
en
Affected