Vulnerability · Published Jul 9, 2021 · Assigned by mitre
CVE-2021-36154
High 7.5
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.1%top 18.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
HTTP2ToRawGRPCServerCodec in gRPC Swift 1.1.1 and earlier allows remote attackers to deny service via the delivery of many small messages within a single HTTP/2 frame, leading to Uncontrolled Recursion and stack consumption.
Affected products (as reported)
References
- https://github.com/grpc/grpc-swift/releases x_refsource_MISC
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35274 x_refsource_MISC
- https://github.com/grpc/grpc-swift/security/advisories/GHSA-4rhq-vq24-88gw x_refsource_MISC