Advisories » MGASA-2019-0021

Updated openafs packages fix security vulnerabilities

Publication date: 08 Jan 2019
Modification date: 08 Jan 2019
Type: security
Affected Mageia releases : 6
CVE: CVE-2018-16947 , CVE-2018-16948 , CVE-2018-16949

Description

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://www.debian.org/security/2018/dsa-4302
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16947
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16948
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16949

SRPMS

6/core

• openafs-1.6.23-1.mga6