Amazon Linux AMI update for vim

1) Input validation error

EUVDB-ID: #VU33140

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-1248

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

im before patch 8.0.0056 does not properly validate values for the 'filetype', 'syntax' and 'keymap' options, which may result in the execution of arbitrary code if a file with a specially crafted modeline is opened.

Mitigation

Update the affected packages:

i686:
    vim-minimal-8.0.0134-1.43.amzn1.i686
    vim-enhanced-8.0.0134-1.43.amzn1.i686
    vim-filesystem-8.0.0134-1.43.amzn1.i686
    vim-debuginfo-8.0.0134-1.43.amzn1.i686
    vim-common-8.0.0134-1.43.amzn1.i686

src:
    vim-8.0.0134-1.43.amzn1.src

x86_64:
    vim-debuginfo-8.0.0134-1.43.amzn1.x86_64
    vim-common-8.0.0134-1.43.amzn1.x86_64
    vim-minimal-8.0.0134-1.43.amzn1.x86_64
    vim-enhanced-8.0.0134-1.43.amzn1.x86_64
    vim-filesystem-8.0.0134-1.43.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2016-779.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. However, proof of concept for this vulnerability is available.