PT-2023-30338 · Remarshal · Remarshal

Taichi Kotake · Published 2023-11-13 · Updated 2023-11-16 · CVE-2023-47163

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Remarshal versions prior to 0.17.1

Description The issue allows for the expansion of YAML alias nodes unlimitedly, making Remarshal susceptible to a Billion Laughs Attack. This can lead to a denial-of-service (DoS) condition when processing untrusted YAML files.

Recommendations For versions prior to 0.17.1, update to version 0.17.1 or later to resolve the issue. As a temporary workaround, consider avoiding the processing of untrusted YAML files until the update is applied.

Fix

Uncontrolled Recursion

Resource Exhaustion

Weakness Enumeration

CWE-674

CWE-400

Related Identifiers

CVE-2023-47163

GHSA-GW7G-QR8W-3448

PYSEC-2023-236

Affected Products

Remarshal

References · 9

• https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494 · Patch
• https://osv.dev/vulnerability/PYSEC-2023-236 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-47163 · Security Note
• https://osv.dev/vulnerability/CVE-2023-47163 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-gw7g-qr8w-3448 · Vendor Advisory
• https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1 · Note
• https://github.com/remarshal-project/remarshal · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/remarshal/PYSEC-2023-236.yaml · Note
• https://jvn.jp/en/jp/JVN86156389 · Note