5.5
CVE-2023-53220
- EPSS 0.15%
- Veröffentlicht 15.09.2025 14:21:49
- Zuletzt bearbeitet 14.01.2026 18:16:31
- Quelle 416baaa9-dc9f-4396-8d5f-8c081f
- CVE-Watchlists
- Unerledigt
media: az6007: Fix null-ptr-deref in az6007_i2c_xfer()
In the Linux kernel, the following vulnerability has been resolved:
media: az6007: Fix null-ptr-deref in az6007_i2c_xfer()
In az6007_i2c_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach az6007_i2c_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen.
We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a
("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.14.326
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.295
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.257
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.197
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.133
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.55
Linux ≫ Linux Kernel Version >= 6.2 < 6.5.5
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. 
Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.15% | 0.041 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
CWE-476 NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
https://git.kernel.org/stable/c/c6763fefa267f6e62595a6ac1f57815d99fc90b7
https://git.kernel.org/stable/c/adcb73f8ce9aec48b1f85223f401c1574015d8d2
https://git.kernel.org/stable/c/991c77fe18c6f374bbf83376f8c42550aa565662
https://git.kernel.org/stable/c/a9def3e9718a4dc756f48db147d42ec41a966240
https://git.kernel.org/stable/c/5b1ea100ad3695025969dc4693f307877fb688d6
https://git.kernel.org/stable/c/6ab7ea4e17d6a605d05308adf8f3408924770cba
https://git.kernel.org/stable/c/a1110f19d4940e4185251d072cbb0ff51486a1e7
https://git.kernel.org/stable/c/1047f9343011f2cedc73c64829686206a7e9fc3f