Bug 758971 (CVE-2020-28935)

Summary:	[TRACKER] symbolic link traversal when writing PID file (CVE-2020-28935)
Product:	Gentoo Security	Reporter:	Thomas Deutschmann (RETIRED) <whissi>
Component:	Vulnerabilities	Assignee:	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 (RETIRED) 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

2021-01-29 00:43:20 UTC

Dead tracker.