Buffer overflow in spice (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU7549

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7506

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to boundary error when processing SPICE protocol client messages in spice. A remote unauthenticated attacker can send a specially crafted message, trigger 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

spice (Alpine package): 0.12.6-r1

External links

http://git.alpinelinux.org/aports/commit/?id=03fec4585c1e4a7736a7727b5a03e477dbd27bab
http://git.alpinelinux.org/aports/commit/?id=4e1c871fdcc37ed141df6a2f53d3bd62fddd8fea
http://git.alpinelinux.org/aports/commit/?id=9a0074177b1efee56bc3f82db0651fa656877d9e
http://git.alpinelinux.org/aports/commit/?id=516192d8e6a233a6fba38bb4ec3f530ec33e7929
http://git.alpinelinux.org/aports/commit/?id=05a899cd3c4c56a4c66617800ffccf0a4a10f078
http://git.alpinelinux.org/aports/commit/?id=397245574b5fd00de29202a36b2e30c43320369c
http://git.alpinelinux.org/aports/commit/?id=e97486107f04b12d7bbc5ee4c37733c24c9d5205

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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