CVE-2022-24777 json
Denial of Service via reachable assertion in grpc-swift
published 4y ago modified 4mo ago also EUVD-2023-1873 , GHSA-r6ww-5963-7r95
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
grpc-swift is the Swift language implementation of gRPC, a remote procedure call (RPC) framework. Prior to version 1.7.2, a grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This is due to incorrect logic when handling GOAWAY frames. The attack is low-effort: it takes very little resources to construct and send the required sequence of frames. The impact on availability is high as the server will crash, dropping all in flight connections and requests. This issue is fixed in version 1.7.2. There are currently no known workarounds.
Patch / fix
- swift github.com/grpc/grpc-swift 1.7.2
- linuxfoundation grpc_swift 1.7.2
Is CVE-2022-24777 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
1.18% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| swift | github.com/grpc/grpc-swift | <1.7.2 |
1.7.2 |
Affected products
- grpc grpc-swift
Classification
- Weakness
-
- CWE-617 Reachable Assertion
References
-
github.com
/grpc/grpc-swift/commit/858f977f2a51fca2292f384cf7a108dc2e73a3bd
web, patch, third-party-advisory
-
github.com
/grpc/grpc-swift/security/advisories/GHSA-r6ww-5963-7r95
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-24777
advisory
-
github.com
/grpc/grpc-swift
package
Sources
- CVE List CVE-2022-24777
- GitHub Advisory GHSA-r6ww-5963-7r95
- NVD CVE-2022-24777
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.