Mageia 6: MGASA-2019-0021 Critical: Openafs DoS and Authentication Issues
mageia
January 8, 2019
Jeffrey Altman reported that the backup tape controller (butc) process does accept incoming RPCs but does not require (or allow for) authentication of those RPCs, allowing an unaut...
Summary
Jeffrey Altman reported that the backup tape controller (butc) process
does accept incoming RPCs but does not require (or allow for)
authentication of those RPCs, allowing an unauthenticated attacker to
perform volume operations with administrator credentials
(CVE-2018-16947).
Mark Vitale reported that several RPC server routines do not fully
initialize output variables, leaking memory contents (from both the
stack and the heap) to the remote caller for otherwise-successful RPCs
(CVE-2018-16948).
Mark Vitale reported that an unauthenticated attacker can consume large
amounts of server memory and network bandwidth via specially crafted
requests, resulting in denial of service to legitimate clients
(CVE-2018-16949).
References
- https://bugs.mageia.org/show_bug.cgi?id=23663
- https://openafs.org/pages/security/OPENAFS-SA-2018-001.txt
- https://openafs.org/pages/security/OPENAFS-SA-2018-002.txt
- https://openafs.org/pages/security/OPENAFS-SA-2018-003.txt
- http://openafs.org/dl/openafs/1.6.23/RELNOTES-1.6.23
- https://lists.debian.org/debian-security-announce/2018/msg00233.html
- https://www.cve.org/CVERecord?id=CVE-2018-16947
- https://www.cve.org/CVERecord?id=CVE-2018-16948
- https://www.cve.org/CVERecord?id=CVE-2018-16949
Topics Covered
Resolution
SRPMS
- 6/core/openafs-1.6.23-1.mga6
PREVIOUS
NEXT
Severity
critical
Lowest
Low
Medium
High
Critical
Publication date: 08 Jan 2019
URL: https://advisories.mageia.org/MGASA-2019-0021.html
Type: security
CVE: CVE-2018-16947,
CVE-2018-16948,
CVE-2018-16949
Topics Covered
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Related News
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!