Amazon Linux AMI update for ncurses



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-29491
CWE-ID CWE-119
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

ncurses
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU75141

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-29491

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing malformed data in a terminfo database file. A local user can trigger memory corruption and execute arbitrary code on the target system.


Mitigation

Update the affected packages:

aarch64:
    ncurses-static-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-compat-libs-debuginfo-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-c++-libs-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-c++-libs-debuginfo-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-libs-debuginfo-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-debugsource-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-compat-libs-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-libs-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-debuginfo-6.2-4.20200222.amzn2023.0.4.aarch64
    ncurses-devel-6.2-4.20200222.amzn2023.0.4.aarch64

noarch:
    ncurses-base-6.2-4.20200222.amzn2023.0.4.noarch
    ncurses-term-6.2-4.20200222.amzn2023.0.4.noarch

src:
    ncurses-6.2-4.20200222.amzn2023.0.4.src

x86_64:
    ncurses-static-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-compat-libs-debuginfo-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-c++-libs-debuginfo-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-debugsource-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-libs-debuginfo-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-c++-libs-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-debuginfo-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-compat-libs-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-libs-6.2-4.20200222.amzn2023.0.4.x86_64
    ncurses-devel-6.2-4.20200222.amzn2023.0.4.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

ncurses: before 6.2-4.20200222

CPE2.3 External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-220.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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