ALAS-2012-115

Amazon Linux 1 Security Advisory: ALAS-2012-115
Advisory Release Date: 2012-08-03 15:56 Pacific
Advisory Updated Date: 2014-09-14 16:49 Pacific

Severity: Medium

References: CVE-2012-3571 CVE-2012-3954 RHSA-2012-1141
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially-crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571)

Two memory leak flaws were found in the dhcpd daemon. A remote attacker could use these flaws to cause dhcpd to exhaust all available memory by sending a large number of DHCP requests. (CVE-2012-3954)

Affected Packages:

dhcp

Issue Correction:
Run yum update dhcp to update your system.

New Packages:

i686:
    dhcp-4.1.1-31.P1.17.amzn1.i686
    dhcp-devel-4.1.1-31.P1.17.amzn1.i686
    dhcp-debuginfo-4.1.1-31.P1.17.amzn1.i686
    dhclient-4.1.1-31.P1.17.amzn1.i686
    dhcp-common-4.1.1-31.P1.17.amzn1.i686

src:
    dhcp-4.1.1-31.P1.17.amzn1.src

x86_64:
    dhcp-common-4.1.1-31.P1.17.amzn1.x86_64
    dhclient-4.1.1-31.P1.17.amzn1.x86_64
    dhcp-devel-4.1.1-31.P1.17.amzn1.x86_64
    dhcp-debuginfo-4.1.1-31.P1.17.amzn1.x86_64
    dhcp-4.1.1-31.P1.17.amzn1.x86_64

Additional References

Red Hat: CVE-2012-3571, CVE-2012-3954

Mitre: CVE-2012-3571, CVE-2012-3954