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amazonAmazonALAS-2013-161
HistoryMar 02, 2013 - 4:49 p.m.

Medium: dnsmasq

2013-03-0216:49:00
alas.aws.amazon.com
17

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.029 Low

EPSS

Percentile

90.8%

Issue Overview:

It was discovered that dnsmasq, when used in combination with certain libvirtd configurations, could incorrectly process network packets from network interfaces that were intended to be prohibited. A remote, unauthenticated attacker could exploit this flaw to cause a denial of service via DNS amplification attacks. (CVE-2012-3411)

Affected Packages:

dnsmasq

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

New Packages:

i686:  
    dnsmasq-2.48-13.9.amzn1.i686  
    dnsmasq-debuginfo-2.48-13.9.amzn1.i686  
    dnsmasq-utils-2.48-13.9.amzn1.i686  
  
src:  
    dnsmasq-2.48-13.9.amzn1.src  
  
x86_64:  
    dnsmasq-2.48-13.9.amzn1.x86_64  
    dnsmasq-utils-2.48-13.9.amzn1.x86_64  
    dnsmasq-debuginfo-2.48-13.9.amzn1.x86_64  

Additional References

Red Hat: CVE-2012-3411

Mitre: CVE-2012-3411

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.029 Low

EPSS

Percentile

90.8%