Amazon Linux AMI update for bind



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-2775
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Denial of service

EUVDB-ID: #VU164

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-2775

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause the target service to crash.

The vulnerability exists due to boundary error in BIND. A remote unauthenticated attacker can cause the target BIND server to crash by sending a specially crafted request with a query name and a search list entry that exceeds the maximum allowable length.

Systems using the lightweight resolution protocol via either the 'lwresd' utility or via named using the "lwres" statement in 'named.conf' are affected.

Successful exploitation of this vulnerability may result in denial of service.

Mitigation

Update the affected packages.

i686:
    bind-libs-9.8.2-0.37.rc1.47.amzn1.i686
    bind-sdb-9.8.2-0.37.rc1.47.amzn1.i686
    bind-devel-9.8.2-0.37.rc1.47.amzn1.i686
    bind-debuginfo-9.8.2-0.37.rc1.47.amzn1.i686
    bind-9.8.2-0.37.rc1.47.amzn1.i686
    bind-utils-9.8.2-0.37.rc1.47.amzn1.i686
    bind-chroot-9.8.2-0.37.rc1.47.amzn1.i686

src:
    bind-9.8.2-0.37.rc1.47.amzn1.src

x86_64:
    bind-libs-9.8.2-0.37.rc1.47.amzn1.x86_64
    bind-9.8.2-0.37.rc1.47.amzn1.x86_64
    bind-devel-9.8.2-0.37.rc1.47.amzn1.x86_64
    bind-utils-9.8.2-0.37.rc1.47.amzn1.x86_64
    bind-sdb-9.8.2-0.37.rc1.47.amzn1.x86_64
    bind-chroot-9.8.2-0.37.rc1.47.amzn1.x86_64
    bind-debuginfo-9.8.2-0.37.rc1.47.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2016-745.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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