Amazon Linux AMI update for libvorbis

1) Buffer overflow

EUVDB-ID: #VU11140

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5146

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing Vorbis audio within libvorbis library. A remote unauthenticated attacker can create a specially crafted HTML page, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages.

i686:
    libvorbis-devel-1.3.3-8.7.amzn1.i686
    libvorbis-1.3.3-8.7.amzn1.i686
    libvorbis-debuginfo-1.3.3-8.7.amzn1.i686

noarch:
    libvorbis-devel-docs-1.3.3-8.7.amzn1.noarch

src:
    libvorbis-1.3.3-8.7.amzn1.src

x86_64:
    libvorbis-devel-1.3.3-8.7.amzn1.x86_64
    libvorbis-1.3.3-8.7.amzn1.x86_64
    libvorbis-debuginfo-1.3.3-8.7.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2018-981.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.