CVE-2019-25072 — Due to support of Gzip compression in request bodies, as well as a lack of limit

Due to support of Gzip compression in request bodies, as well as a lack of limiting response body sizes, a malicious server can cause a client to consume a significant amount of system resources, which may be used as a denial of service vector.

01What is this vulnerability?

Due to support of Gzip compression in request bodies, as well as a lack of limiting response body sizes, a malicious server can cause a client to consume a significant amount of system resources, which may be used as a denial of service vector.

02Affected products

Vendor	Product	Versions
github.com	tendermint/tendermint / github.com/tendermint/tendermint/rpc/lib/client	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-12-27T21:13:24.222Z
• Last modified: 2025-04-11T16:40:25.817Z

09References

• github.com — https://github.com/tendermint/tendermint/pull/3430
• github.com — https://github.com/tendermint/tendermint/commit/03085c2da23b179c4a51f59a03cb40aa…
• pkg.go.dev — https://pkg.go.dev/vuln/GO-2020-0037