An Apache HTTPD security update has been released for Slackware 14.0, 14.1, 14.2, and -current.

slackware-security: httpd (SSA:2021-158-01)

[slackware-security] httpd (SSA:2021-158-01)

New httpd packages are available for Slackware 14.0, 14.1, 14.2, and -current
to fix security issues.

Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/httpd-2.4.48-i586-1_slack14.2.txz: Upgraded.
This release contains security fixes and improvements.
mod_http2: Fix a potential NULL pointer dereference.
Unexpected section matching with 'MergeSlashes OFF'.
mod_auth_digest: possible stack overflow by one nul byte while validating
the Digest nonce.
mod_session: Fix possible crash due to NULL pointer dereference, which
could be used to cause a Denial of Service with a malicious backend
server and SessionHeader.
mod_session: Fix possible crash due to NULL pointer dereference, which
could be used to cause a Denial of Service.
mod_proxy_http: Fix possible crash due to NULL pointer dereference, which
could be used to cause a Denial of Service.
mod_proxy_wstunnel, mod_proxy_http: Handle Upgradable protocols end-to-end
negotiation.
For more information, see:
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31618
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30641
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35452
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26691
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26690
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13950
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17567
(* Security fix *)
+--------------------------+

Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(  http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on   http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 14.0:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/httpd-2.4.48-i486-1_slack14.0.txz

Updated package for Slackware x86_64 14.0:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/httpd-2.4.48-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/httpd-2.4.48-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/httpd-2.4.48-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/httpd-2.4.48-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/httpd-2.4.48-x86_64-1_slack14.2.txz

Updated package for Slackware -current:
  ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/httpd-2.4.48-i586-1.txz

Updated package for Slackware x86_64 -current:
  ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/httpd-2.4.48-x86_64-1.txz

MD5 signatures:
+-------------+

Slackware 14.0 package:
4f0a55562611068696fc6226b8e93557 httpd-2.4.48-i486-1_slack14.0.txz

Slackware x86_64 14.0 package:
9f8fe54dc02cb68a13d44b1ad79e4ebb httpd-2.4.48-x86_64-1_slack14.0.txz

Slackware 14.1 package:
c334d35be6d30453999c2ad23db88475 httpd-2.4.48-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
cf7e418101644df490a1a5e3992cf230 httpd-2.4.48-x86_64-1_slack14.1.txz

Slackware 14.2 package:
4ff2c515e62b318f0dd271505bbc66d5 httpd-2.4.48-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
19874d3b39ed822829b586e1d58c502c httpd-2.4.48-x86_64-1_slack14.2.txz

Slackware -current package:
1a5048b8fd29b6a5bf71ef513e12285d n/httpd-2.4.48-i586-1.txz

Slackware x86_64 -current package:
2a9add06087b868c2c5e9872d9a0a36a n/httpd-2.4.48-x86_64-1.txz

Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg httpd-2.4.48-i586-1_slack14.2.txz

Then, restart Apache httpd:

# /etc/rc.d/rc.httpd stop
# /etc/rc.d/rc.httpd start