Amazon Linux AMI update for bind

1) Buffer overflow

EUVDB-ID: #VU31837

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2014-0591

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The query_findclosestnsec3 function in query.c in named in ISC BIND 9.6, 9.7, and 9.8 before 9.8.6-P2 and 9.9 before 9.9.4-P2, and 9.6-ESV before 9.6-ESV-R10-P2, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a crafted DNS query to an authoritative nameserver that uses the NSEC3 signing feature.

Mitigation

Update the affected packages:

i686:
    bind-sdb-9.8.2-0.23.rc1.32.amzn1.i686
    bind-utils-9.8.2-0.23.rc1.32.amzn1.i686
    bind-devel-9.8.2-0.23.rc1.32.amzn1.i686
    bind-libs-9.8.2-0.23.rc1.32.amzn1.i686
    bind-chroot-9.8.2-0.23.rc1.32.amzn1.i686
    bind-debuginfo-9.8.2-0.23.rc1.32.amzn1.i686
    bind-9.8.2-0.23.rc1.32.amzn1.i686

src:
    bind-9.8.2-0.23.rc1.32.amzn1.src

x86_64:
    bind-devel-9.8.2-0.23.rc1.32.amzn1.x86_64
    bind-9.8.2-0.23.rc1.32.amzn1.x86_64
    bind-debuginfo-9.8.2-0.23.rc1.32.amzn1.x86_64
    bind-utils-9.8.2-0.23.rc1.32.amzn1.x86_64
    bind-sdb-9.8.2-0.23.rc1.32.amzn1.x86_64
    bind-libs-9.8.2-0.23.rc1.32.amzn1.x86_64
    bind-chroot-9.8.2-0.23.rc1.32.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*

External links

https://alas.aws.amazon.com/ALAS-2014-287.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.