CVE-2011-1930

9.8 criticalEPSS 21%

In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped. This may allow a remote attacker to send a specially crafted DHCP reply which could execute arbitrary code with the privileges of any process which sources DHCP options.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 21% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
Published: 2019-11-14
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

debian:debian_linux
klibc_project:klibc

References

http://security.gentoo.org/glsa/glsa-201309-21.xml
http://www.openwall.com/lists/oss-security/2012/05/22/12
http://www.securityfocus.com/bid/47924
https://access.redhat.com/security/cve/cve-2011-1930
https://security-tracker.debian.org/tracker/CVE-2011-1930

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