CVE-2018-20679

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2018-20679
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20679.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-20679
Downstream
Related
Published
2019-01-09T16:29:00.273Z
Modified
2026-05-15T12:03:12.310306098Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcpgetoption() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
            ],
            "source": "CPE_FIELD",
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
                {
                    "last_affected": "14.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "last_affected": "18.10"
                }
            ]
        }
    ]
}
References

Affected packages