Skip to content

Uncontrolled Resource Consumption in LengthPrefixedMessageReader

High severity GitHub Reviewed Published Jul 8, 2021 in grpc/grpc-swift • Updated Jun 19, 2023

Package

swift github.com/grpc/grpc-swift (Swift)

Affected versions

< 1.2.0

Patched versions

1.2.0

Description

Impact

Affected gRPC Swift clients and servers are vulnerable to uncontrolled resource consumption attacks. Excessive memory may be allocated when parsing messages. This can lead to a denial of service.

Patches

The problem has been fixed in 1.2.0.

Workarounds

No workaround is available. Users must upgrade.

References

@glbrntt glbrntt published to grpc/grpc-swift Jul 8, 2021
Published by the National Vulnerability Database Jul 9, 2021
Published to the GitHub Advisory Database Jun 9, 2023
Reviewed Jun 9, 2023
Last updated Jun 19, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2021-36155

GHSA ID

GHSA-rxmj-hg9v-vp3p

Source code

Checking history
See something to contribute? Suggest improvements for this vulnerability.