[FREEBSD:F25A34B1-910D-11EE-A1A2-641C67A117D8] varnish -- HTTP/2 Rapid Reset Attack

Severity High

Affected Packages 2

CVEs 1

Varnish Cache Project reports:

  A denial of service attack can be performed on Varnish Cache servers
that have the HTTP/2 protocol turned on. An attacker can create a large
volume of streams and immediately reset them without ever reaching the
maximum number of concurrent streams allowed for the session, causing
the Varnish server to consume unnecessary resources processing requests
for which the response will not be delivered.

Package	Affected Version
pkg:freebsd/varnish7	< 7.4.2
pkg:freebsd/varnish6	< 6.6.3

ID

FREEBSD:F25A34B1-910D-11EE-A1A2-641C67A117D8

Severity

high

Severity from

CVE-2023-44487

URL

http://vuxml.freebsd.org/freebsd/f25a34b1-910d-11ee-a1a2-641c67a117d8.html

Published

2023-11-13T00:00:00
(10 months ago)

Modified

2023-12-02T00:00:00
(9 months ago)

Rights

FreeBSD VuXML Security Team

Other Advisories

Source	# ID	Name	URL
FreeBSD VuXML			https://varnish-cache.org/security/VSV00013.html

Type	Package URL	Namespace	Name / Product	Version	Distribution / Platform	Arch	Patch / Fix
Affected	pkg:freebsd/varnish7		varnish7	< 7.4.2
Affected	pkg:freebsd/varnish6		varnish6	< 6.6.3

# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	Exploits	PoC	Pubblication Date	Modification Date
# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	PoC	Pubblication Date	Modification Date