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Alerts This Week
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Debian 9 DSA-4302-1 Critical: Openafs Denial Of Service Issues

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Calendar Grey September 23, 2018
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Debian DSA-4302-1 addresses critical vulnerabilities in OpenAFS, stemming from poor input sanitization and access controls, risking unauthorized access and data leakage
Several vulnerabilities were discovered in openafs, an implementation of the distributed filesystem AFS

Summary

CVE-2018-16947

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.

https://openafs.org/pages/security/OPENAFS-SA-2018-001.txt

CVE-2018-16948

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.

https://openafs.org/pages/security/OPENAFS-SA-2018-002.txt

CVE-2018-16949

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.

https://openafs.org/pages/security/OPENAFS-SA-2018-003.txt

For the stable distribution (stretch), these problems hav...

Read the Full Advisory

Severity
critical
Lowest
Low
Medium
High
Critical

Package: openafs
CVE ID: CVE-2018-16947 CVE-2018-16948 CVE-2018-16949

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