Vulnerability Description
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()")
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.14.326 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1047f9343011f2cedc73c64829686206a7e9fc3fPatch
- https://git.kernel.org/stable/c/5b1ea100ad3695025969dc4693f307877fb688d6Patch
- https://git.kernel.org/stable/c/6ab7ea4e17d6a605d05308adf8f3408924770cbaPatch
- https://git.kernel.org/stable/c/991c77fe18c6f374bbf83376f8c42550aa565662Patch
- https://git.kernel.org/stable/c/a1110f19d4940e4185251d072cbb0ff51486a1e7Patch
- https://git.kernel.org/stable/c/a9def3e9718a4dc756f48db147d42ec41a966240Patch
- https://git.kernel.org/stable/c/adcb73f8ce9aec48b1f85223f401c1574015d8d2Patch
- https://git.kernel.org/stable/c/c6763fefa267f6e62595a6ac1f57815d99fc90b7Patch
FAQ
What is CVE-2023-53220?
CVE-2023-53220 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 ...
How severe is CVE-2023-53220?
CVE-2023-53220 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53220?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.