FS#42159 - [libvirt] CVE-2014-3633 out-of-bounds read access

Attached to Project: Community Packages
Opened by Levente Polyak (anthraxx) - Sunday, 28 September 2014, 15:04 GMT
Last edited by Sergej Pupykin (sergej) - Monday, 29 September 2014, 11:02 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To Sergej Pupykin (sergej)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Hello,

libvirt <= 1.2.8 is suffering from an out-of-bounds read access [0] in qemuDomainGetBlockIoTune() due to invalid index.

A remote attacker able to establish a read-only connection to libvirtd could use this flaw to crash libvirtd or, potentially, leak memory from the libvirtd process.

A fix for this flaw has been commited upstream [1] and f.e. already applied by debian [2] as 1.2.9 is not yet there.

[0] https://access.redhat.com/security/cve/CVE-2014-3633
[1] http://libvirt.org/git/?p=libvirt.git;a=commit;h=3e745e8f775dfe6f64f18b5c2fe4791b35d3546b
[2] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=762203
This task depends upon

Closed by  Sergej Pupykin (sergej)
Monday, 29 September 2014, 11:02 GMT
Reason for closing:  Fixed
Additional comments about closing:  patch applied
Comment by Levente Polyak (anthraxx) - Sunday, 28 September 2014, 15:07 GMT
for convenience, i have attached the patch file from libvirt git [0]

[0] http://libvirt.org/git/?p=libvirt.git;a=commit;h=3e745e8f775dfe6f64f18b5c2fe4791b35d3546b
   CVE-2014-3633-qemu-blkiotune-... (1.7 KiB)

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