CVE-2018-5732
CVE-2018-5732 · A specially constructed response from a malicious server can cause a buffer overflow in dhclient
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
CVSS 7.5 · High · EPSS 5.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
isc dhcp
- Versions
- ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0: Affected
No fix published
isc-dhcp Debian:12
- Affected ranges
- ECOSYSTEM: < 4.3.5-3.1
Update to 4.3.5-3.1
isc-dhcp Debian:13
- Affected ranges
- ECOSYSTEM: < 4.3.5-3.1
Update to 4.3.5-3.1
isc-dhcp Ubuntu:14.04:LTS
- Versions
- 4.2.4-7ubuntu8
- 4.2.4-7ubuntu9
- 4.2.4-7ubuntu10
- 4.2.4-7ubuntu11
- 4.2.4-7ubuntu12
- 4.2.4-7ubuntu12.1
- 4.2.4-7ubuntu12.2
- 4.2.4-7ubuntu12.3
- 4.2.4-7ubuntu12.4
- 4.2.4-7ubuntu12.5
- 4.2.4-7ubuntu12.6
- 4.2.4-7ubuntu12.7
- 4.2.4-7ubuntu12.8
- 4.2.4-7ubuntu12.9
- 4.2.4-7ubuntu12.10
- Affected ranges
- ECOSYSTEM: < 4.2.4-7ubuntu12.12
Update to 4.2.4-7ubuntu12.12
isc-dhcp Ubuntu:16.04:LTS
- Versions
- 4.3.1-5ubuntu3
- 4.3.1-5ubuntu4
- 4.3.1-5ubuntu5
- 4.3.3-5ubuntu1
- 4.3.3-5ubuntu2
- 4.3.3-5ubuntu4
- 4.3.3-5ubuntu5
- 4.3.3-5ubuntu7
- 4.3.3-5ubuntu8
- 4.3.3-5ubuntu9
- 4.3.3-5ubuntu10
- 4.3.3-5ubuntu11
- 4.3.3-5ubuntu12
- 4.3.3-5ubuntu12.1
- 4.3.3-5ubuntu12.3
- 4.3.3-5ubuntu12.4
- 4.3.3-5ubuntu12.6
- 4.3.3-5ubuntu12.7
- Affected ranges
- ECOSYSTEM: < 4.3.3-5ubuntu12.9
Update to 4.3.3-5ubuntu12.9
isc-dhcp Ubuntu:18.04:LTS
- Versions
- 4.3.5-3ubuntu2
- 4.3.5-3ubuntu3
- 4.3.5-3ubuntu4
- Affected ranges
- ECOSYSTEM: < 4.3.5-3ubuntu5
Update to 4.3.5-3ubuntu5