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AUSCERT External Security Bulletin Redistribution
ESB-2018.3457
[DLA 1565-1] glusterfs security update
6 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: glusterfs
Publisher: Debian
Operating System: Debian GNU/Linux 8
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Create Arbitrary Files -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-14661 CVE-2018-14659 CVE-2018-14653
CVE-2018-14652 CVE-2018-14651 CVE-2018-10930
CVE-2018-10929 CVE-2018-10928 CVE-2018-10927
CVE-2018-10926
Reference: ESB-2018.3409
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2018/11/msg00003.html
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Package : glusterfs
Version : 3.5.2-2+deb8u5
CVE ID : CVE-2018-14651 CVE-2018-14652 CVE-2018-14653
CVE-2018-14659 CVE-2018-14661
Multiple security vulnerabilities were discovered in GlusterFS, a
clustered file system. Buffer overflows and path traversal issues may
lead to information disclosure, denial-of-service or the execution of
arbitrary code.
CVE-2018-14651
It was found that the fix for CVE-2018-10927, CVE-2018-10928,
CVE-2018-10929, CVE-2018-10930, and CVE-2018-10926 was incomplete.
A remote, authenticated attacker could use one of these flaws to
execute arbitrary code, create arbitrary files, or cause denial of
service on glusterfs server nodes via symlinks to relative paths.
CVE-2018-14652
The Gluster file system is vulnerable to a buffer overflow in the
'features/index' translator via the code handling the
'GF_XATTR_CLRLK_CMD' xattr in the 'pl_getxattr' function. A remote
authenticated attacker could exploit this on a mounted volume to
cause a denial of service.
CVE-2018-14653
The Gluster file system is vulnerable to a heap-based buffer
overflow in the '__server_getspec' function via the 'gf_getspec_req'
RPC message. A remote authenticated attacker could exploit this to
cause a denial of service or other potential unspecified impact.
CVE-2018-14659
The Gluster file system is vulnerable to a denial of service attack
via use of the 'GF_XATTR_IOSTATS_DUMP_KEY' xattr. A remote,
authenticated attacker could exploit this by mounting a Gluster
volume and repeatedly calling 'setxattr(2)' to trigger a state dump
and create an arbitrary number of files in the server's runtime
directory.
CVE-2018-14661
It was found that usage of snprintf function in feature/locks
translator of glusterfs server was vulnerable to a format string
attack. A remote, authenticated attacker could use this flaw to
cause remote denial of service.
For Debian 8 "Jessie", these problems have been fixed in version
3.5.2-2+deb8u5.
We recommend that you upgrade your glusterfs packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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