PT-2021-21142 · Unknown · Grpc Swift

Glbrntt · Published 2021-07-09 · Updated 2023-05-22 · CVE-2021-36154

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: gRPC Swift versions 1.1.1 and earlier

Description: The issue allows remote attackers to cause a denial of service via the delivery of many small messages within a single HTTP/2 frame, leading to uncontrolled recursion and stack consumption. Affected gRPC Swift servers are vulnerable to uncontrolled recursion and stack consumption when parsing certain payloads.

Recommendations: For gRPC Swift versions 1.1.1 and earlier, upgrade to version 1.2.0 to resolve the issue.

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2021-36154

GHSA-4RHQ-VQ24-88GW

Affected Products

Grpc Swift

References · 8

• https://osv.dev/vulnerability/CVE-2021-36154 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36154 · Security Note
• https://osv.dev/vulnerability/GHSA-4rhq-vq24-88gw · Vendor Advisory
• https://github.com/grpc/grpc-swift/security/advisories/GHSA-4rhq-vq24-88gw · Note
• https://github.com/grpc/grpc-swift/releases · Note
• https://github.com/grpc/grpc-swift/releases/tag/1.2.0 · Note
• https://github.com/grpc/grpc-swift · Note
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35274 · Note