CVE-2018-5732

Source
https://cve.org/CVERecord?id=CVE-2018-5732
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-5732.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-5732
Downstream
Related
Published
2019-10-09T16:15:13.407Z
Modified
2026-03-10T14:44:24.782008Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

References

Affected packages

Git / gitlab.isc.org/isc-projects/dhcp

Affected ranges

Type
GIT
Repo
https://gitlab.isc.org/isc-projects/dhcp
Events
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Fixed
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Database specific
{
    "versions": [
        {
            "introduced": "4.1.0"
        },
        {
            "last_affected": "4.1.2"
        },
        {
            "introduced": "4.2.0"
        },
        {
            "fixed": "4.2.8"
        },
        {
            "introduced": "4.3.0"
        },
        {
            "fixed": "4.3.6"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-NA"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r10"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r10b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r10rc1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r11"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r11b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r11rc1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r11rc2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r12"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r12\\-p1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r12b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r13"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r13b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r14"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r14b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r15"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r3"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r3b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r5"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r5b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r5rc1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r5rc2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r6"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r7"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r8"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r8b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r8rc1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r9"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r9b1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1-esv-r9rc1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1.2-p1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.4.0"
        }
    ]
}

Affected versions

Other
v4_1_esv_r0
v4_1_esv_r1
v4_1_esv_r2
v4_3_0
v4_3_1
v4_3_1b1
v4_3_1rc1
v4_3_2
v4_3_2b1
v4_3_2rc1
v4_3_2rc2
v4_3_3
v4_3_3b1
v4_3_4
v4_3_4b1
v4_4_0
v4_4_0b1_f1
v4_3_2.*
v4_3_2.pre-beta

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-5732.json"