Heap-based buffer overflow in qemu (Alpine package)

1) Heap-based buffer overflow

EUVDB-ID: #VU32399

Risk: High

CVSSv3.1: 7.3 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-5154

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the IDE subsystem in QEMU, as used in Xen 4.5.x and earlier, when the container has a CDROM drive enabled,. A remote attacker can use unspecified ATAPI commands. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

qemu (Alpine package): 2.1.3-r1

CPE2.3

• cpe:2.3:o:alpine:qemu_alpine_package:2.1.3-r1:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=3f9dc4f4288ebdbcf2680465617abcdafbe010b8
http://git.alpinelinux.org/aports/commit/?id=f987d4240c07db81b5a3a1111a5a4df6a734918f
http://git.alpinelinux.org/aports/commit/?id=940bb1d7a2738797df28c3861c159eeafb691ba2
http://git.alpinelinux.org/aports/commit/?id=0affe33dcd2b871de43750519c7304b8b84a56c0
http://git.alpinelinux.org/aports/commit/?id=2da905892881b50d9bfe43beb3e6cd993a4eb0af
http://git.alpinelinux.org/aports/commit/?id=9193f2a60e238f6009cf8f5e95d2775544764ed7

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.