Vulnerability identifier: #VU42941
Vulnerability risk: Low
CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2013-2494
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
https://kb.isc.org/article/AA-00880/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.