Vulnerability identifier: #VU42941
Vulnerability risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
DHCP
Server applications /
Other server solutions
Vendor: ISC
Description
The vulnerability allows a remote #AU# to perform a denial of service (DoS) attack.
libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service (memory consumption) via vectors involving a regular expression, as demonstrated by a memory-exhaustion attack against a machine running a dhcpd process, a related issue to CVE-2013-2266.
Mitigation
Install update from vendor's website.
Vulnerable software versions
DHCP: 4.2.0 - 4.2.5
External links
http://kb.isc.org/article/AA-00880/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.