portage-ng / portage / net-dns / nsd / 4.15.0
portage-ng glsa
1 advisory reference net-dns/nsd · none place version 4.15.0 in a vulnerable range
▸ GLSA 202101-38 NSD: Symbolic link traversal this version unaffected normal local 2021-01-29

A vulnerability was discovered in NSD which could allow a local attacker to cause a Denial of Service condition.

Announced
2021-01-29
Revised
2021-01-29
Access
local
Bugs
#758977
Advisory
https://security.gentoo.org/glsa/202101-38

Affected packages

PackageArchVulnerableUnaffected
net-dns/nsd*< 4.3.4>= 4.3.4

Background

An authoritative only, high performance, open source name server

Description

A local vulnerability was discovered that would allow for a local symlink attack due to how NSD handles PID files.

Impact

A local attacker could cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All NSD users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/nsd-4.3.4"

References