Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2011-1930

9.8 · CRITICAL

In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped.

Published Nov 14, 2019EPSS 20.53%

Overview

CVE-2011-1930 is a critical-severity vulnerability. It was published on November 14, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsecurity.gentoo.org/glsa/glsa-201309-21.xmlRefwww.openwall.com/lists/oss-security/2012/05/22/12Refwww.securityfocus.com/bid/47924Refaccess.redhat.com/security/cve/cve-2011-1930Refsecurity-tracker.debian.org/tracker/CVE-2011-1930Refsecurity.gentoo.org/glsa/glsa-201309-21.xmlRefwww.openwall.com/lists/oss-security/2012/05/22/12Refwww.securityfocus.com/bid/47924Refaccess.redhat.com/security/cve/cve-2011-1930Refsecurity-tracker.debian.org/tracker/CVE-2011-1930

How CyberStrike helps

Frequently asked questions

What is CVE-2011-1930?

CVE-2011-1930 is a critical-severity vulnerability. It was published on November 14, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2011-1930?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-1930?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-1930?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-1930 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related CRITICAL CVEs from 2011

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999