CVE-2019-16771

low-risk
Published 2019-12-06

Versions of Armeria 0.85.0 through and including 0.96.0 are vulnerable to HTTP response splitting, which allows remote attackers to inject arbitrary HTTP headers via CRLF sequences when unsanitized data is used to populate the headers of an HTTP response. This vulnerability has been patched in 0.97.0. Potential impacts of this vulnerability include cross-user defacement, cache poisoning, Cross-site scripting (XSS), and page hijacking.

Do I need to act?

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0.42% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.8/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Linecorp

References (4)

Patch https://github.com/line/armeria/commit/b597f7a865a527a84ee3d6937075cfbb4470ed20
Mailing List https://github.com/line/armeria/security/advisories/GHSA-35fr-h7jr-hh86
Patch https://github.com/line/armeria/commit/b597f7a865a527a84ee3d6937075cfbb4470ed20
Mailing List https://github.com/line/armeria/security/advisories/GHSA-35fr-h7jr-hh86
22
/ 100
low-risk
Severity 15/34 · Moderate
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal