CVE-2020-35499
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-35499
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-35499.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 5.10.4.arch1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 5.10.4-1 |
| debian | bullseye | fixed | 5.10.4-1 |
| debian | forky | fixed | 5.10.4-1 |
| debian | sid | fixed | 5.10.4-1 |
| debian | trixie | fixed | 5.10.4-1 |
References
Verify integrity in audit chain (admin only). AS-IS.