CVE-2013-2494: Buffer Overflow
First published: Thu Mar 28 2013(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ISC DHCP Server | =4.2.0 | |
| ISC DHCP Server | =4.2.0-a1 | |
| ISC DHCP Server | =4.2.0-a2 | |
| ISC DHCP Server | =4.2.0-b1 | |
| ISC DHCP Server | =4.2.0-b2 | |
| ISC DHCP Server | =4.2.0-p1 | |
| ISC DHCP Server | =4.2.0-rc1 | |
| ISC DHCP Server | =4.2.1 | |
| ISC DHCP Server | =4.2.1-b1 | |
| ISC DHCP Server | =4.2.1-rc1 | |
| ISC DHCP Server | =4.2.2 | |
| ISC DHCP Server | =4.2.2-b1 | |
| ISC DHCP Server | =4.2.2-rc1 | |
| ISC DHCP Server | =4.2.3 | |
| ISC DHCP Server | =4.2.3-p1 | |
| ISC DHCP Server | =4.2.3-p2 | |
| ISC DHCP Server | =4.2.4 | |
| ISC DHCP Server | =4.2.4-p1 | |
| ISC DHCP Server | =4.2.5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2013-2494?
CVE-2013-2494 is considered to have a high severity due to its potential to cause denial of service through memory exhaustion.
How do I fix CVE-2013-2494?
To fix CVE-2013-2494, upgrade ISC DHCP to version 4.2.5-P1 or later.
What software is affected by CVE-2013-2494?
CVE-2013-2494 affects ISC DHCP versions 4.2.0 through 4.2.4.
What kind of attack is associated with CVE-2013-2494?
CVE-2013-2494 is associated with a denial of service attack that can exploit regular expression processing.
Is there a patch available for CVE-2013-2494?
Yes, a patch is available by upgrading to ISC DHCP version 4.2.5-P1 or higher.
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- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/isc
- canonical/isc dhcp
- version/isc dhcp/4.2.0
- version/isc dhcp/4.2.0-a1
- version/isc dhcp/4.2.0-a2
- version/isc dhcp/4.2.0-b1
- version/isc dhcp/4.2.0-b2
- version/isc dhcp/4.2.0-p1
- version/isc dhcp/4.2.0-rc1
- version/isc dhcp/4.2.1
- version/isc dhcp/4.2.1-b1
- version/isc dhcp/4.2.1-rc1
- version/isc dhcp/4.2.2
- version/isc dhcp/4.2.2-b1
- version/isc dhcp/4.2.2-rc1
- version/isc dhcp/4.2.3
- version/isc dhcp/4.2.3-p1
- version/isc dhcp/4.2.3-p2
- version/isc dhcp/4.2.4
- version/isc dhcp/4.2.4-p1
- version/isc dhcp/4.2.5