A varnish security update has been released for SUSE Linux Enterprise 15 SP3.

openSUSE-SU-2022:0148-1: important: Security update for varnish

openSUSE Security Update: Security update for varnish
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Announcement ID: openSUSE-SU-2022:0148-1
Rating: important
References: #1181400 #1188470 #1195188
Cross-References: CVE-2021-36740 CVE-2022-23959
CVSS scores:
CVE-2021-36740 (NVD) : 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVE-2021-36740 (SUSE): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2022-23959 (NVD) : 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVE-2022-23959 (SUSE): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products:
openSUSE Backports SLE-15-SP3
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An update that solves two vulnerabilities and has one
errata is now available.

Description:

This update for varnish fixes the following issues:

varnish was updated to release 7.1.0 [boo#1195188] [CVE-2022-23959]

* VCL: It is now possible to assign a BLOB value to a BODY variable, in
addition to STRING as before.
* VMOD: New STRING strftime(TIME time, STRING format) function for UTC
formatting.

Update to release 6.6.1

* CVE-2021-36740: Fix an HTTP/2.0 request smuggling vulnerability.
[boo#1188470]

Update to release 6.6.0:

* The ban_cutoff parameter now refers to the overall length of the ban
list, including completed bans, where before only non-completed
(???active???) bans were counted towards ban_cutoff.
* Body bytes accounting has been fixed to always represent the number of
body bytes moved on the wire, exclusive of protocol-specific overhead
like HTTP/1 chunked encoding or HTTP/2 framing.
* The connection close reason has been fixed to properly report
SC_RESP_CLOSE where previously only SC_REQ_CLOSE was reported.
* Unless the new validate_headers feature is disabled, all newly set
headers are now validated to contain only characters allowed by RFC7230.
* The filter_re, keep_re and get_re functions from the bundled cookie vmod
have been changed to take the VCL_REGEX type. This implies that their
regular expression arguments now need to be literal, not e.g. string.
* The interface for private pointers in VMODs has been changed, the VRT
backend interface has been changed, many filter (VDP/VFP) related
signatures have been changed, and the stevedore API has been changed.
(Details thereto, see online changelog.)

Update to release 6.5.1

* Bump the VRT_MAJOR_VERSION number defined in the vrt.h

Update to release 6.5.0

* `PRIV_TOP` is now thread-safe to support parallel ESI implementations.
* varnishstat's JSON output format (-j option) has been changed.
* Behavior for 304-type responses was changed not to update the
Content-Encoding response header of the stored object.

- Update Git-Web repository link

Update to release 6.4.0

* The MAIN.sess_drop counter is gone.
* backend "none" was added for "no backend".
* The hash algorithm of the hash director was changed, so backend
selection will change once only when upgrading.
* It is now possible for VMOD authors to customize the connection pooling
of a dynamic backend.
* For more, see changes.rst.

Update to release 6.3.2

* Fix a denial of service vulnerability when using the proxy protocol
version 2.

Update to release 6.3.0

* The Host: header is folded to lower-case in the builtin_vcl.
* Improved performance of shared memory statistics counters.
* Synthetic objects created from vcl_backend_error {} now replace existing
stale objects as ordinary backend fetches would (for details see
changes.rst)

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Backports SLE-15-SP3:

zypper in -t patch openSUSE-2022-148=1


Package List:

- openSUSE Backports SLE-15-SP3 (aarch64 i586 ppc64le s390x x86_64):

libvarnishapi3-7.1.0-bp153.2.3.1
varnish-7.1.0-bp153.2.3.1
varnish-devel-7.1.0-bp153.2.3.1

References:

  https://www.suse.com/security/cve/CVE-2021-36740.html
  https://www.suse.com/security/cve/CVE-2022-23959.html
  https://bugzilla.suse.com/1181400
  https://bugzilla.suse.com/1188470
  https://bugzilla.suse.com/1195188