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Bug 758971 (CVE-2020-28935)

Summary: [TRACKER] symbolic link traversal when writing PID file (CVE-2020-28935)
Product: Gentoo Security Reporter: Thomas Deutschmann <whissi>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: RESOLVED FIXED    
Severity: normal Keywords: Tracker
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
URL: https://www.nlnetlabs.nl/downloads/unbound/CVE-2020-28935.txt
Whiteboard:
Package list:
Runtime testing required: ---
Bug Depends on: 758974, 758977    
Bug Blocks:    

Description Thomas Deutschmann gentoo-dev 2020-12-07 23:21:58 UTC
Unbound and NSD when writing the PID file would not check if an existing file was a symlink. This could allow for a local symlink attack if an attacker has access to the user Unbound/NSD runs as.
Comment 1 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-01-29 00:43:20 UTC
Dead tracker.