Amazon Linux AMI update for cpio

1) Input validation error

EUVDB-ID: #VU33721

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-1197

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

cpio 2.11, when using the --no-absolute-filenames option, allows local users to write to arbitrary files via a symlink attack on a file in an archive. <a href="http://cwe.mitre.org/data/definitions/61.html">CWE-61: UNIX Symbolic Link (Symlink) Following</a>

Mitigation

Update the affected packages:

i686:
    cpio-2.10-12.13.amzn1.i686
    cpio-debuginfo-2.10-12.13.amzn1.i686

src:
    cpio-2.10-12.13.amzn1.src

x86_64:
    cpio-2.10-12.13.amzn1.x86_64
    cpio-debuginfo-2.10-12.13.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

cpio: before 2.10-12.13

External links

http://alas.aws.amazon.com/ALAS-2024-1925.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.