Vulnerability · Published Feb 19, 2021 · Assigned by redhat
CVE-2020-35499
Medium 6.7
In plain English
A medium-severity null pointer dereference in kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.7Medium
Exploit odds (30 days)0.3%top 80.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.10.4-1 | DEBIAN-CVE-2020-35499 |
| Debian:13 | linux | 5.10.4-1 | DEBIAN-CVE-2020-35499 |
| Debian:14 | linux | 5.10.4-1 | DEBIAN-CVE-2020-35499 |
Affected products (as reported)
Weakness: CWE-476
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1910048 x_refsource_MISC