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Slackware: 2021-354-02 Urgent: Nginx Code Injection and Directory Traversal

slackware
Calendar Grey December 20, 2021
Dist Slackware Esm H88
Updated httpd packages for Slackware address critical buffer overflow and SSRF vulnerabilities. Keep your server safe by applying the most recent patches.
New httpd packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues

Summary

Here are the details from the Slackware 14.2 ChangeLog: patches/packages/httpd-2.4.52-i586-1_slack14.2.txz: Upgraded. SECURITY: CVE-2021-44790: Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier (cve.mitre.org) A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier. Credits: Chamal SECURITY: CVE-2021-44224: Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier (cve.mitre.org) A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be

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Topics%20covered

Topics Covered

security advisory security update buffer overflow critical httpd slackware SSRF

Where Find New Packages

Thanks to the friendly folks at the OSU Open Source Lab (https://osuosl.org/) for donating FTP and rsync hosting to the Slackware project! :-)
Also see the "Get Slack" section on http://www.slackware.com/ for additional mirror sites near you.
Updated package for Slackware 14.0:
Updated package for Slackware x86_64 14.0:
Updated package for Slackware 14.1:
Updated package for Slackware x86_64 14.1:
Updated package for Slackware 14.2:
Updated package for Slackware x86_64 14.2:
Updated package for Slackware -current:
Updated package for Slackware x86_64 -current:

MD5 Signatures

Slackware 14.0 package: 3f33dbe9e48f566aae45f8a56fcee09d httpd-2.4.52-i486-1_slack14.0.txz
Slackware x86_64 14.0 package: b71b016aee508a43f29d343d20cf91fe httpd-2.4.52-x86_64-1_slack14.0.txz
Slackware 14.1 package: 9aee656af113bfdf6b3285e274802126 httpd-2.4.52-i486-1_slack14.1.txz
Slackware x86_64 14.1 package: 2d2de365767b26d8e74304aba13b0057 httpd-2.4.52-x86_64-1_slack14.1.txz
Slackware 14.2 package: 9a3a20287d0395057da257f96cc3087b httpd-2.4.52-i586-1_slack14.2.txz
Slackware x86_64 14.2 package: 78e4e8cff10fafa96a3e4a47930b960d httpd-2.4.52-x86_64-1_slack14.2.txz
Slackware -current package: 0cf640a7486c728b3b9e98a273740340 n/httpd-2.4.52-i586-1.txz
Slackware x86_64 -current package: d1aa0a02df15ce2d9408e0ae0d76c3bc n/httpd-2.4.52-x86_64-1.txz

Severity
critical
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory security update buffer overflow critical httpd slackware SSRF

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg httpd-2.4.52-i586-1_slack14.2.txz Then, restart Apache httpd: # /etc/rc.d/rc.httpd stop # /etc/rc.d/rc.httpd start

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