Vulnerability · Published Jul 9, 2021 · Assigned by mitre
CVE-2021-36155
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
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.
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=35303 x_refsource_MISC
- https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p x_refsource_MISC