Vulnerability Description
LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length, which allows remote attackers to cause uncontrolled resource consumption and deny service.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Grpc Swift | 1.0.0 |
Related Weaknesses (CWE)
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303Mailing ListThird Party Advisory
- https://github.com/grpc/grpc-swift/releasesRelease NotesThird Party Advisory
- https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3pThird Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303Mailing ListThird Party Advisory
- https://github.com/grpc/grpc-swift/releasesRelease NotesThird Party Advisory
- https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3pThird Party Advisory
FAQ
What is CVE-2021-36155?
CVE-2021-36155 is a vulnerability with a CVSS score of 7.5 (HIGH). LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length, which allows remote attackers to cause uncontrolled resource consumption and deny service.
How severe is CVE-2021-36155?
CVE-2021-36155 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-36155?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Grpc Swift.