CVE-2011-1930

CriticalCVSS 9.8/10Last modified Jun 16, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
klibc	klibc	1.5.20; 1.5.21

References

http://security.gentoo.org/glsa/glsa-201309-21.xmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2012/05/22/12Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/47924Third Party Advisory, VDB Entry
https://access.redhat.com/security/cve/cve-2011-1930Not Applicable, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1930Third Party Advisory
http://security.gentoo.org/glsa/glsa-201309-21.xmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2012/05/22/12Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/47924Third Party Advisory, VDB Entry
https://access.redhat.com/security/cve/cve-2011-1930Not Applicable, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-1930Third Party Advisory

Timeline

Published: Nov 14, 2019
Last modified: Jun 16, 2026
NVD status: Modified

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