Bug 1850194 (CVE-2019-3689) - CVE-2019-3689 nfs-utils: root-owned files stored in insecure /var/lib/nfs
Summary: CVE-2019-3689 nfs-utils: root-owned files stored in insecure /var/lib/nfs
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2019-3689
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1850196
Blocks: 1850195
TreeView+ depends on / blocked
 
Reported: 2020-06-23 17:20 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-02-16 19:47 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2020-06-29 17:20:28 UTC
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Description Guilherme de Almeida Suckevicz 2020-06-23 17:20:52 UTC 
The nfs-utils package in SUSE Linux Enterprise Server 12 before and including version 1.3.0-34.18.1 and in SUSE Linux Enterprise Server 15 before and including version 2.1.1-6.10.2 the directory /var/lib/nfs is owned by statd:nogroup. This directory contains files owned and managed by root. If statd is compromised, it can therefore trick processes running with root privileges into creating/overwriting files anywhere on the system.

Reference:
https://bugzilla.suse.com/show_bug.cgi?id=1150733

Upstream commit:
https://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commitdiff;h=fee2cc29e888f2ced6a76990923aef19d326dc0e
Comment 1 Guilherme de Almeida Suckevicz 2020-06-23 17:22:01 UTC 
Created nfs-utils tracking bugs for this issue:

Affects: fedora-all [bug 1850196]
Comment 2 Riccardo Schirone 2020-06-29 12:50:01 UTC 
Statement:

This issue did not affect the versions of nfs-utils as shipped with Red Hat Enterprise Linux 6, 7, and 8 as /var/lib/nfs directory is owned by root:root.
Comment 3 Product Security DevOps Team 2020-06-29 17:20:28 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-3689
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