CVE-2019-9514 High · 7.5 EPSS 82.8%
Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service
Summary
Some HTTP/2 implementations contain a flaw in how they handle reset floods, affecting the HTTP/2 protocol handling in affected servers and peers. An attacker with network access and no authentication or user interaction can open many streams and send an invalid request on each, forcing a flood of RST_STREAM frames that can exhaust memory, CPU, or both, depending on how the peer queues them, causing denial of service.
Official description · CVE.org
Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown. Breakdown
25.2 / 100
- Exploited
- Not confirmed
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
Disclosed on 13 Aug 2019. No public exploit code or confirmed exploitation is recorded.
Patch historyEarlier and later CVEs in the same code, in date order. It shows when a fix was bypassed or incomplete and which version finally fixed it.
7 fixes in golang.org/x/net over 3 years. The latest fix listed for golang.org/x/net is 0.0.0-20211209124913-491a49abca63.
Fixes in golang.org/x/netGo package, by fixed version. Earlier and later fixes in the same package, not necessarily the same bug.
- 0.0.0-20190125002852-4b62a64f59f7CVE-2018-178481 Oct 2018
- 0.0.0-20190125091013-d26f9f9a57f3CVE-2018-178461 Oct 2018
- 0.0.0-20190813141303-74dc4d7220e7CVE-2019-951213 Aug 2019
- 0.0.0-20190813141303-74dc4d7220e7CVE-2019-951413 Aug 2019
- 0.0.0-20210428140749-89ef3d95e781CVE-2021-3152527 May 2021
- 0.0.0-20210520170846-37e1c6afe023CVE-2021-3319426 May 2021
- 0.0.0-20211209124913-491a49abca63CVE-2021-447161 Jan 2022Latest listed
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
Am I affected? What do I upgrade to?
From GitHub Security Advisories and OSV2 packages in 1 ecosystem. No single main package: each of these ships the affected code.
- Gogolang.org/x/netAffected: All versions before 0.0.0-20190813141303-74dc4d7220e7Upgrade to 0.60.0 or later
- GostdlibAffected: 1.12.0-0 up to 1.12.8; All versions before 1.11.13Upgrade to 1.26.9 or later (older lines: 1.11.13)