Debian LTS Advisory ([SECURITY] [DLA 1513-1] openafs security update)

Several security vulnerabilities were discovered in OpenAFS, a distributed file system. CVE-2018-16947 The backup tape controller process accepts incoming RPCs but does not require (or allow for) authentication of those RPCs. Handling those RPCs results in operations being performed with administrator credentials, including dumping/restoring volume contents and manipulating the backup database. CVE-2018-16948 Several RPC server routines did not fully initialize their output variables before returning, leaking memory contents from both the stack and the heap. Because the OpenAFS cache manager functions as an Rx server for the AFSCB service, clients are also susceptible to information leakage. CVE-2018-16949 Several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4GB. An unauthenticated attacker could send, or claim to send, large input values and consume server resources waiting for those inputs, denying service to other valid connections.

openafs on Debian Linux

This check tests the installed software version using the apt package manager.

For Debian 8 'Jessie', these problems have been fixed in version 1.6.9-2+deb8u8. We recommend that you upgrade your openafs packages.