FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

qemu -- stack buffer overflow while parsing SCSI commands

Affected packages
	qemu	<	2.4.0
	qemu-devel	<	2.4.0
	qemu-sbruno	<	2.4.50.g20150814
	qemu-user-static	<	2.4.50.g20150814

Details

VuXML ID	a267cd6c-b0c4-11e5-8d13-bc5ff45d0f28
Discovery	2015-07-23
Entry	2016-01-01

Prasad J Pandit, Red Hat Product Security Team, reports:

Qemu emulator built with the SCSI device emulation support is vulnerable to a stack buffer overflow issue. It could occur while parsing SCSI command descriptor block with an invalid operation code.

A privileged(CAP_SYS_RAWIO) user inside guest could use this flaw to crash the Qemu instance resulting in DoS.

[source]

References

CVE Name	CVE-2015-5158
URL	http://git.qemu.org/?p=qemu.git;a=commit;h=c170aad8b057223b1139d72e5ce7acceafab4fa9
URL	http://openwall.com/lists/oss-security/2015/07/23/6
URL	https://github.com/seanbruno/qemu-bsd-user/commit/c170aad8b057223b1139d72e5ce7acceafab4fa9