5.5

CVE-2023-52915

media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer

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()")
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version < 4.14.326
LinuxLinux Kernel Version >= 4.15 < 4.19.295
LinuxLinux Kernel Version >= 4.20 < 5.4.257
LinuxLinux Kernel Version >= 5.5 < 5.10.197
LinuxLinux Kernel Version >= 5.11 < 5.15.133
LinuxLinux Kernel Version >= 5.16 < 6.1.55
LinuxLinux Kernel Version >= 6.2 < 6.5.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.114
CVSS Metriken
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
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/0143f282b15f7cedc0392ea10050fb6000fd16e6
Patch
https://git.kernel.org/stable/c/41b7181a40af84448a2b144fb02d8bf32b7e9a23
Patch
https://git.kernel.org/stable/c/6c01ef65de0b321b2db1ef9abf8f1d15862b937e
Patch
https://git.kernel.org/stable/c/7bf744f2de0a848fb1d717f5831b03db96feae89
Patch
https://git.kernel.org/stable/c/b2f54ed7739dfdf42c4df0a11131aad7c8635464
Patch
https://git.kernel.org/stable/c/b49c6e5dd236787f13a062ec528d724169f11152
Patch
https://git.kernel.org/stable/c/d9ef84a7c222497ecb5fdf93361c76931804825e
Patch
https://git.kernel.org/stable/c/fa58d9db5cad4bb7bb694b6837e3b96d87554f2b
Patch