NULL Pointer Dereference Affecting libmicrodns package, versions <0.2.0-1
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-LIBMICRODNS-7545424
- published 20 Jul 2024
- disclosed 24 Mar 2020
How to fix?
Upgrade Debian:unstable
libmicrodns
to version 0.2.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libmicrodns
package and not the libmicrodns
package as distributed by Debian
.
See How to fix?
for Debian:unstable
relevant fixed versions and status.
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.