7.1
CVE-2020-36791
- EPSS 0.16%
- Veröffentlicht 07.05.2025 13:17:33
- Zuletzt bearbeitet 10.11.2025 17:34:55
- Quelle 416baaa9-dc9f-4396-8d5f-8c081f
- CVE-Watchlists
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net_sched: keep alloc_hash updated after hash allocation
In the Linux kernel, the following vulnerability has been resolved:
net_sched: keep alloc_hash updated after hash allocation
In commit 599be01ee567 ("net_sched: fix an OOB access in cls_tcindex")
I moved cp->hash calculation before the first
tcindex_alloc_perfect_hash(), but cp->alloc_hash is left untouched.
This difference could lead to another out of bound access.
cp->alloc_hash should always be the size allocated, we should
update it after this tcindex_alloc_perfect_hash().Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.4.214 < 4.4.218
Linux ≫ Linux Kernel Version >= 4.9.214 < 4.9.218
Linux ≫ Linux Kernel Version >= 4.14.171 < 4.14.175
Linux ≫ Linux Kernel Version >= 4.19.103 < 4.19.114
Linux ≫ Linux Kernel Version >= 5.4.19 < 5.4.29
Linux ≫ Linux Kernel Version >= 5.5.3 < 5.5.14
Linux ≫ Linux Kernel Version5.6 Updaterc1
Linux ≫ Linux Kernel Version5.6 Updaterc2
Linux ≫ Linux Kernel Version5.6 Updaterc3
Linux ≫ Linux Kernel Version5.6 Updaterc4
Linux ≫ Linux Kernel Version5.6 Updaterc5
Linux ≫ Linux Kernel Version5.6 Updaterc6
Linux ≫ Linux Kernel Version5.6 Updaterc7
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Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.16% | 0.054 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.1 | 1.8 | 5.2 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
|
CWE-125 Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
https://git.kernel.org/stable/c/d6cdc5bb19b595486fb2e6661e5138d73a57f454
https://git.kernel.org/stable/c/c4453d2833671e3a9f6bd52f0f581056c3736386
https://git.kernel.org/stable/c/9f8b6c44be178c2498a00b270872a6e30e7c8266
https://git.kernel.org/stable/c/557d015ffb27b672e24e6ad141fd887783871dc2
https://git.kernel.org/stable/c/d23faf32e577922b6da20bf3740625c1105381bf
https://git.kernel.org/stable/c/bd3ee8fb6371b45c71c9345cc359b94da2ddefa9
https://git.kernel.org/stable/c/0d1c3530e1bd38382edef72591b78e877e0edcd3
https://blog.cdthoughts.ch/2021/03/16/syzbot-bug.html
https://syzkaller.appspot.com/bug?id=ea260693da894e7b078d18fca2c9c0a19b457534