Amazon Linux AMI update for gsl

1) Buffer overflow

EUVDB-ID: #VU80509

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-35357

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to a boundary error within the gsl_stats_quantile_from_sorted_data() function. A remote attacker can pass specially crafted data to the application, trigger memory corruption and compromise the affected system.

Mitigation

Update the affected packages:

i686:
    gsl-debuginfo-1.13-4.4.amzn1.i686
    gsl-1.13-4.4.amzn1.i686
    gsl-static-1.13-4.4.amzn1.i686
    gsl-devel-1.13-4.4.amzn1.i686

src:
    gsl-1.13-4.4.amzn1.src

x86_64:
    gsl-debuginfo-1.13-4.4.amzn1.x86_64
    gsl-static-1.13-4.4.amzn1.x86_64
    gsl-devel-1.13-4.4.amzn1.x86_64
    gsl-1.13-4.4.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

gsl: All versions

CPE2.3

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

External links

https://alas.aws.amazon.com/ALAS-2023-1851.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.