CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
80.2%
Debian Security Advisory DSA-5088-1 [email protected]
https://www.debian.org/security/ Florian Weimer
March 03, 2022 https://www.debian.org/security/faq
Package : varnish
CVE ID : CVE-2021-36740 CVE-2022-23959
Debian Bug : 991040 1004433
Brief introduction
CVE-2021-36740
Martin Blix Grydeland discovered that Varnish is vulnerable to
request smuggling attacks if the HTTP/2 protocol is enabled.
CVE-2022-23959
James Kettle discovered a request smuggling attack against the
HTTP/1 protocol implementation in Varnish.
For the oldstable distribution (buster), these problems have been fixed
in version 6.1.1-1+deb10u3.
For the stable distribution (bullseye), these problems have been fixed in
version 6.5.1-1+deb11u2.
We recommend that you upgrade your varnish packages.
For the detailed security status of varnish please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/varnish
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | s390x | varnish | < 6.1.1-1+deb10u3 | varnish_6.1.1-1+deb10u3_s390x.deb |
Debian | 10 | i386 | libvarnishapi2-dbgsym | < 6.1.1-1+deb10u3 | libvarnishapi2-dbgsym_6.1.1-1+deb10u3_i386.deb |
Debian | 10 | ppc64el | varnish | < 6.1.1-1+deb10u3 | varnish_6.1.1-1+deb10u3_ppc64el.deb |
Debian | 10 | ppc64el | libvarnishapi-dev | < 6.1.1-1+deb10u3 | libvarnishapi-dev_6.1.1-1+deb10u3_ppc64el.deb |
Debian | 11 | mipsel | varnish-dbgsym | < 6.5.1-1+deb11u2 | varnish-dbgsym_6.5.1-1+deb11u2_mipsel.deb |
Debian | 11 | s390x | libvarnishapi-dev | < 6.5.1-1+deb11u2 | libvarnishapi-dev_6.5.1-1+deb11u2_s390x.deb |
Debian | 11 | arm64 | varnish-dbgsym | < 6.5.1-1+deb11u2 | varnish-dbgsym_6.5.1-1+deb11u2_arm64.deb |
Debian | 11 | s390x | libvarnishapi2 | < 6.5.1-1+deb11u2 | libvarnishapi2_6.5.1-1+deb11u2_s390x.deb |
Debian | 10 | mipsel | libvarnishapi2-dbgsym | < 6.1.1-1+deb10u3 | libvarnishapi2-dbgsym_6.1.1-1+deb10u3_mipsel.deb |
Debian | 11 | i386 | libvarnishapi-dev | < 6.5.1-1+deb11u2 | libvarnishapi-dev_6.5.1-1+deb11u2_i386.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
80.2%