CVE-2013-2494
libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service ...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2013-2494- CVSS 2.0
- 4.9 Medium
AV:N/AC:H/Au:S/C:N/I:N/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2013-2494- Updated
- 2026-11-02
EUVDEUVD-2013-2440 No score
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.
- Record
EUVD-2013-2440- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f5jm-37c8-vx73 No score
libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service ...
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.
- Record
GHSA-f5jm-37c8-vx73- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2013-2494- Updated
- 2026-11-02
OSVDEBIAN-CVE-2013-2494 No score
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.
- Record
DEBIAN-CVE-2013-2494- Updated
- 2026-11-02
OSVUBUNTU-CVE-2013-2494 No score
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.
- Record
UBUNTU-CVE-2013-2494- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-2494 is a medium vulnerability (CVSS 4.9) in Isc Dhcp, published March 28, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.17%, the 67th percentile. Fixed in isc-dhcp 4.2.4-6.