CVE-2023-53153
High
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Fix use after free for wext Key information in wext.connect is not reset on (re)connect and can hold data from a previous connection. Reset key data to avoid that drivers or mac80211 incorrectly detect a WEP connection request and access the freed or already reused memory. Additionally optimize cfg80211_sme_connect() and avoid an useless schedule of conn_work.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 15, 2025
First seenSep 15, 2025
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3 or later
Patches
- git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185b
- git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747
- git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7
- git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9
- git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2
- git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6
- git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7
- git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.32 ≤ v < 4.14.308, 4.15 ≤ v < 4.19.276, 4.20 ≤ v < 5.4.235, 5.5 ≤ v < 5.10.173, 5.11 ≤ v < 5.15.99, 5.16 ≤ v < 6.1.16, 6.2 ≤ v < 6.2.3 | 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3 |
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