Tracker / CVE-2023-52915
CVE-2023-52915
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer In af9035_i2c_master_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 af9035_i2c_master_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()")
Affected products and versions
| linux | linux_kernel · … → 4.14.326 |
|---|---|
| linux | linux_kernel · 4.15 → 4.19.295 |
| linux | linux_kernel · 4.20 → 5.4.257 |
| linux | linux_kernel · 5.11 → 5.15.133 |
| linux | linux_kernel · 5.16 → 6.1.55 |
| linux | linux_kernel · 5.5 → 5.10.197 |
| linux | linux_kernel · 6.2 → 6.5.5 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.