Description
The dhcpcd DHCP client before 1.3.22 allows remote attackers to cause a denial of service (daemon crash) via unknown vectors that cause an out-of-bounds memory read.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dhcpcd | 1:1.3.22pl4-22 | — |
| Debian 13 | dhcpcd | 1:1.3.22pl4-22 | — |
| Debian 3.1 | dhcpcd | 1:1.3.22pl4-21sarge1 | DSA-750-1 |
Advisories 1
- DSA-750-1 dhcpcd - out-of-bound memory access Debian Security (DSA / DLA) · Mar 9, 2026
References
- RHSA-2005:603 vendor-advisory
- DSA-750 vendor-advisory