Vulnerability · Published Mar 24, 2020 · Assigned by talos
CVE-2020-6078
High 7.5
In plain English
A high-severity security flaw in Videolabs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.1% (higher than 88% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | vlc | 3.0.9.2-r0 | ALPINE-CVE-2020-6078 |
| Alpine:v3.21 | vlc | 3.0.9.2-r0 | ALPINE-CVE-2020-6078 |
| Alpine:v3.22 | vlc | 3.0.9.2-r0 | ALPINE-CVE-2020-6078 |
| Alpine:v3.23 | vlc | 3.0.9.2-r0 | ALPINE-CVE-2020-6078 |
| Alpine:v3.24 | vlc | 3.0.9.2-r0 | ALPINE-CVE-2020-6078 |
| Debian:13 | libmicrodns | 0.2.0-1 | DEBIAN-CVE-2020-6078 |
| Debian:14 | libmicrodns | 0.2.0-1 | DEBIAN-CVE-2020-6078 |
| Debian:12 | vlc | 3.0.8-4 | DEBIAN-CVE-2020-6078 |
| Debian:13 | vlc | 3.0.8-4 | DEBIAN-CVE-2020-6078 |
| Debian:14 | vlc | 3.0.8-4 | DEBIAN-CVE-2020-6078 |
Affected products (as reported)
References
- DSA-4671 vendor-advisory, x_refsource_DEBIAN
- GLSA-202005-10 vendor-advisory, x_refsource_GENTOO
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001 x_refsource_MISC