CVE-2012-3571: Buffer Overflow

Published Jul 25, 2012
·
Updated

ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed client identifier.

Affected Software

33 affected components
ISC DHCP=4.1.2
ISC DHCP=4.2.0
ISC DHCP=4.2.0-a1
ISC DHCP=4.2.0-a2
ISC DHCP=4.2.0-b1
ISC DHCP=4.2.0-b2
ISC DHCP=4.2.0-p1
ISC DHCP=4.2.0-rc1
ISC DHCP=4.2.1
ISC DHCP=4.2.1-b1
ISC DHCP=4.2.1-rc1
ISC DHCP=4.2.2
ISC DHCP=4.2.2-b1
ISC DHCP=4.2.2-rc1
ISC DHCP=4.2.3
ISC DHCP=4.2.3-p1
ISC DHCP=4.2.3-p2
ISC DHCP=4.2.4
ISC DHCP=4.1-esv
ISC DHCP=4.1-esv-r1
ISC DHCP=4.1-esv-r2
ISC DHCP=4.1-esv-r3
ISC DHCP=4.1-esv-r3_b1
ISC DHCP=4.1-esv-r4
ISC DHCP=4.1-esv-r5
ISC DHCP=4.1-esv-r5_b1
ISC DHCP=4.1-esv-r5_rc1
ISC DHCP=4.1-esv-r5_rc2
Canonical Ubuntu Linux=11.04
Canonical Ubuntu Linux=11.10
Canonical Ubuntu Linux=12.04
Debian Debian Linux=6.0
Debian Debian Linux=7.0

Event History

Jul 25, 2012
CVE Published
via MITRE·10:00 AM
Data Sourced
via MITRE·10:00 AM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2012-3571?

The severity of CVE-2012-3571 is classified as high due to its potential to cause denial of service through CPU consumption.

2

How do I fix CVE-2012-3571?

To fix CVE-2012-3571, update ISC DHCP to version 4.2.5 or later, or apply recommended patches.

3

What versions are affected by CVE-2012-3571?

CVE-2012-3571 affects ISC DHCP versions 4.1.2 through 4.2.4 and specific 4.1-ESV versions prior to 4.1-ESV-R6.

4

How does CVE-2012-3571 exploit the ISC DHCP software?

CVE-2012-3571 exploits the ISC DHCP software by sending a malformed client identifier, leading to an infinite loop and excessive CPU usage.

5

Can CVE-2012-3571 affect my system remotely?

Yes, CVE-2012-3571 can be exploited by remote attackers, allowing them to cause a denial of service without requiring physical access.

Contact

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