CVE-2021-36155
HIGH
7.5
CVSS Score
Published: July 9, 2021 at 11:11 AM UTC
Updated: June 17, 2026 at 03:58 AM UTC
1 product affected across 1 vendorGrpc Swift
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (3)
x_refsource_MISCMailing ListThird Party Advisory
Source: [email protected]
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/grpc/grpc-swift/releasesx_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3pCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-770
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