High severity7.5NVD Advisory· Published Oct 9, 2019· Updated Jun 17, 2026
CVE-2018-5732
CVE-2018-5732
Description
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
54cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*+ 37 more
- cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*range: >=4.1.0,<=4.1.2
- cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r10b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r10rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r11:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r11b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r11rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r11rc2:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r12-p1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r12b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r13:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r13b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r14:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r14b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r15:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r3b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5rc2:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r8b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r8rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r9:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r9b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r9rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.4.0:*:*:*:*:*:*:*
- (no CPE)range: 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
- (no CPE)range: ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
- osv-coords16 versionspkg:rpm/opensuse/dhcp&distro=openSUSE%20Tumbleweedpkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/dhcp&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3
< 4.4.2.P1-2.4+ 15 more
- (no CPE)range: < 4.4.2.P1-2.4
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.2.4.P2-0.28.8.1
- (no CPE)range: < 4.2.4.P2-0.28.8.1
- (no CPE)range: < 4.2.4.P2-0.28.8.1
- (no CPE)range: < 4.2.4.P2-0.28.8.1
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.2.4.P2-0.28.8.1
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.2.4.P2-0.28.8.1
- (no CPE)range: < 4.3.3-10.14.1
- (no CPE)range: < 4.3.3-10.14.1
Patches
Vulnerability mechanics
References
1- kb.isc.org/docs/aa-01565nvdVendor Advisory
News mentions
0No linked articles in our index yet.