[3.7] varnish: Data leak - "-sfile" Stevedore transient objects (CVE-2017-8807)ID: oval:org.secpod.oval:def:1800707 | Date: (C)2018-03-29 (M)2022-08-31 |
Class: PATCH | Family: unix |
A wrong if statement in the varnishd source code means that synthetic objects in stevedores which over-allocate, may leak up to page size of data from a malloc memory allocation.In a unpredictable percentage of the cases where this condition arises, a segmentation fault will happen instead. All the following conditions are required to trigger the problem: A -sfile or -spersistent stevedore must be configured A synthetic object must be created in vcl_backend_error{}The synthetic object ends up in the file or persistent stevedore. Affected Versions:¶ 4.1.0 to 5.2.0 Fixed In:¶ varnish 4.1.9, varnish 5.2.1
Platform: |
Alpine Linux 3.7 |