VDB
CVE-2021-47232
CVE-2021-47232
PUBLISHED
CVSS 8.399999618530273 HIGH
In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while in use This patch fixes a Use-after-Free found by the syzbot. The problem is that a skb is taken from the per-session skb queue, without incrementing the ref count. This leads to a Use-after-Free if the skb is taken concurrently from the session queue due to a CTS.
EPSS 0.62% · 49.7th percentile
Risk Scores
CVSS 3.1
8.399999618530273
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.62%
49.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| linux | linux_kernel | 5.4, 5.4, 5.4 |
| linux | linux_kernel | 0, 5.4, 5.4.128 |
| Linux | Linux | 9d71dd0c70099914fcd063135da3c580865e924c, 9d71dd0c70099914fcd063135da3c580865e924c, 9d71dd0c70099914fcd063135da3c580865e924c |
Timeline
- May 21, 2024 CVE Published
- May 22, 2024 EPSS Score
- Jun 17, 2024 EPSS Score
- Jul 11, 2024 EPSS Score
- Aug 5, 2024 EPSS Score
- Aug 30, 2024 EPSS Score
- Sep 23, 2024 EPSS Score
- Oct 18, 2024 EPSS Score
- Nov 12, 2024 EPSS Score
- Dec 8, 2024 EPSS Score
- Jan 1, 2025 EPSS Score
- Jan 26, 2025 EPSS Score
References
- https://git.kernel.org/stable/c/509ab6bfdd0c76daebbad0f0af07da712116de22 url
- https://git.kernel.org/stable/c/1071065eeb33d32b7d98c2ce7591881ae7381705 url
- https://git.kernel.org/stable/c/22cba878abf646cd3a02ee7c8c2cef7afe66a256 url
- https://git.kernel.org/stable/c/2030043e616cab40f510299f09b636285e0a3678 url
- https://nvd.nist.gov/vuln/detail/CVE-2021-47232 advisory