VulnerabilityModified
CVE-2011-4539
dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.
MEDIUM 5.0EPSS 15.2%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 15.22% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- isc/dhcp · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.htmlMailing List, Third Party Advisory
- http://secunia.com/advisories/47153Third Party Advisory
- http://secunia.com/advisories/47178Third Party Advisory
- http://security.gentoo.org/glsa/glsa-201301-06.xmlThird Party Advisory
- http://www.debian.org/security/2012/dsa-2519Third Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:182Third Party Advisory
- http://www.securityfocus.com/bid/50971Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1026393Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1309-1Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71680Third Party Advisory, VDB Entry
- https://www.isc.org/software/dhcp/advisories/cve-2011-4539Vendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.htmlMailing List, Third Party Advisory
- http://secunia.com/advisories/47153Third Party Advisory
- http://secunia.com/advisories/47178Third Party Advisory
- http://security.gentoo.org/glsa/glsa-201301-06.xmlThird Party Advisory
- http://www.debian.org/security/2012/dsa-2519Third Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:182Third Party Advisory
- http://www.securityfocus.com/bid/50971Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1026393Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1309-1Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71680Third Party Advisory, VDB Entry
- https://www.isc.org/software/dhcp/advisories/cve-2011-4539Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.