Skip to content
New issue

Have a question about this project? # for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “#”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? # to your account

x/vulndb: potential Go vuln in github.com/envoyproxy/envoy: CVE-2024-30255 #2713

Closed
GoVulnBot opened this issue Apr 10, 2024 · 1 comment
Labels
excluded: NOT_GO_CODE This vulnerability does not refer to a Go module.

Comments

@GoVulnBot
Copy link

CVE-2024-30255 references github.com/envoyproxy/envoy, which may be a Go module.

Description:
Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustion due to flood of CONTINUATION frames. Envoy's HTTP/2 codec allows the client to send an unlimited number of CONTINUATION frames even after exceeding Envoy's header map limits. This allows an attacker to send a sequence of CONTINUATION frames without the END_HEADERS bit set causing CPU utilization, consuming approximately 1 core per 300Mbit/s of traffic and culminating in denial of service through CPU exhaustion. Users should upgrade to version 1.29.3, 1.28.2, 1.27.4, or 1.26.8 to mitigate the effects of the CONTINUATION flood. As a workaround, disable HTTP/2 protocol for downstream connections.

References:

Cross references:

See doc/triage.md for instructions on how to triage this report.

id: GO-ID-PENDING
modules:
    - module: github.com/envoyproxy/envoy
      vulnerable_at: 1.29.3
      packages:
        - package: envoy
cves:
    - CVE-2024-30255
references:
    - advisory: https://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm

@tatianab tatianab added excluded: NOT_GO_CODE This vulnerability does not refer to a Go module. and removed possibly not Go labels Jun 5, 2024
@gopherbot
Copy link
Contributor

Change https://go.dev/cl/590855 mentions this issue: data/excluded: add 20 excluded reports

# for free to join this conversation on GitHub. Already have an account? # to comment
Labels
excluded: NOT_GO_CODE This vulnerability does not refer to a Go module.
Projects
None yet
Development

No branches or pull requests

3 participants