CVE-2011-1930
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 20.5%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 20.53% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 18 May 2011
- CISA KEV
- Not listed
- Affected
- klibc project/klibc · debian/debian linux
- Source
- secalert@redhat.com
EPSS 20.5% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.