Amazon Linux AMI update for curl



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-38039
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

curl
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU80732

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-38039

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not limit the size of received headers from a single request that are stored for future reference. A remote attacker can send overly large HTTP responses to the application and consume all memory resources.

Mitigation

Update the affected packages:

aarch64:
    libcurl-debuginfo-8.3.0-1.amzn2023.0.1.aarch64
    libcurl-minimal-debuginfo-8.3.0-1.amzn2023.0.1.aarch64
    curl-8.3.0-1.amzn2023.0.1.aarch64
    curl-minimal-8.3.0-1.amzn2023.0.1.aarch64
    curl-debuginfo-8.3.0-1.amzn2023.0.1.aarch64
    curl-minimal-debuginfo-8.3.0-1.amzn2023.0.1.aarch64
    curl-debugsource-8.3.0-1.amzn2023.0.1.aarch64
    libcurl-minimal-8.3.0-1.amzn2023.0.1.aarch64
    libcurl-8.3.0-1.amzn2023.0.1.aarch64
    libcurl-devel-8.3.0-1.amzn2023.0.1.aarch64

src:
    curl-8.3.0-1.amzn2023.0.1.src

x86_64:
    curl-minimal-debuginfo-8.3.0-1.amzn2023.0.1.x86_64
    curl-debuginfo-8.3.0-1.amzn2023.0.1.x86_64
    libcurl-minimal-8.3.0-1.amzn2023.0.1.x86_64
    curl-minimal-8.3.0-1.amzn2023.0.1.x86_64
    curl-debugsource-8.3.0-1.amzn2023.0.1.x86_64
    libcurl-debuginfo-8.3.0-1.amzn2023.0.1.x86_64
    curl-8.3.0-1.amzn2023.0.1.x86_64
    libcurl-minimal-debuginfo-8.3.0-1.amzn2023.0.1.x86_64
    libcurl-8.3.0-1.amzn2023.0.1.x86_64
    libcurl-devel-8.3.0-1.amzn2023.0.1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

curl: before 8.3.0-1

CPE2.3 External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-368.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.



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