CVE-2011-1930

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.

9.8

CVSS

Severity: Critical

CVSS 3.1 •

CVSS 2.0 •

EPSS 28.99% Top 5%

Third-Party Advisory gentoo.org Third-Party Advisory openwall.com Third-Party Advisory securityfocus.com Third-Party Advisory redhat.com Third-Party Advisory debian.org

Affected: klibc klibc

References

Link	Tags
https://security-tracker.debian.org/tracker/CVE-2011-1930	third party advisory
https://access.redhat.com/security/cve/cve-2011-1930	third party advisory not applicable
http://security.gentoo.org/glsa/glsa-201309-21.xml	third party advisory
http://www.openwall.com/lists/oss-security/2012/05/22/12	third party advisory mailing list
http://www.securityfocus.com/bid/47924	third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2011-1930?: CVE-2011-1930 has been scored as a critical severity vulnerability.
How to fix CVE-2011-1930?: To fix CVE-2011-1930, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1930 being actively exploited in the wild?: It is possible that CVE-2011-1930 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~29% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2011-1930?: CVE-2011-1930 affects klibc klibc.

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