vulnwire
7.5high

CVE-2016-4817

lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cau…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.4%
percentile 91%
Public exploits
0
none known

lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted packet.

Exploit prediction (EPSS)

4.45% probability of exploitation in the next 30 days, higher than 91% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

References

  • github.com /h2o/h2o/commit/1c0808d580da09fdec5a9a74ff09e103ea058dd4 · x_refsource_CONFIRM, x_transferred
  • jvn.jp /en/jp/JVN87859762/index.html · third-party-advisory, x_refsource_JVN, x_transferred
  • github.com /h2o/h2o/pull/920 · x_refsource_CONFIRM, x_transferred
  • jvndb.jvn.jp /jvndb/JVNDB-2016-000091 · third-party-advisory, x_refsource_JVNDB, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.