CVE-2018-17082

MEDIUM severity · CVSS 6.1 · Cross-site scripting (XSS)

6.1CVSS MEDIUM

Summary

The Apache2 component in PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 allows XSS via the body of a "Transfer-Encoding: chunked" request, because the bucket brigade is mishandled in the php_handler function in sapi/apache2handler/sapi_apache2.c.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

Confidentiality impactLow

Integrity impactLow

Availability impactNone

Exploit probability (EPSS)4%

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products we track (1)

PHP

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://github.com/php/php-src/commit/23b057742e3cf199612fa8050ae86cae675e214e ↗

Additional information

NVD record
https://github.com/php/php-src/commit/23b057742e3cf199612fa8050ae86cae675e214ePatch
https://bugs.php.net/bug.php?id=76582Advisory
http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
https://access.redhat.com/errata/RHSA-2019:2519
https://lists.debian.org/debian-lts-announce/2018/09/msg00020.htmlAdvisory
https://security.gentoo.org/glsa/201812-01Advisory
https://security.netapp.com/advisory/ntap-20180924-0001/Advisory