Amazon Linux AMI update for zlib

Published: 2022-07-07

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2018-25032
CWE-ID	CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Amazon Linux AMI Operating systems & Components / Operating system
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU61671

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-25032

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when compressing data. A remote attacker can pass specially crafted input to the application, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

i686:
    zlib-debuginfo-1.2.8-7.19.amzn1.i686
    zlib-1.2.8-7.19.amzn1.i686
    zlib-devel-1.2.8-7.19.amzn1.i686
    minizip-1.2.8-7.19.amzn1.i686
    minizip-devel-1.2.8-7.19.amzn1.i686
    zlib-static-1.2.8-7.19.amzn1.i686

src:
    zlib-1.2.8-7.19.amzn1.src

x86_64:
    minizip-1.2.8-7.19.amzn1.x86_64
    minizip-devel-1.2.8-7.19.amzn1.x86_64
    zlib-1.2.8-7.19.amzn1.x86_64
    zlib-devel-1.2.8-7.19.amzn1.x86_64
    zlib-static-1.2.8-7.19.amzn1.x86_64
    zlib-debuginfo-1.2.8-7.19.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2022-1602.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.