#VU14533 Buffer overflow in SPICE - CVE-2018-10873

Vulnerability identifier: #VU14533

Vulnerability risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10873

CWE-ID: CWE-120

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SPICE
Universal components / Libraries / Software for developers

Vendor: SPICE

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.

The vulnerability exists due to buffer overflow in the write_validate_array_item()function when python_modules/demarshal.py code is used for demarshalling messages, as defined in the python_modules/demarshal.py code. A remote attacker can send specially crafted messages that submit malicious input to a targeted system. A successful exploit could trigger memory corruption and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SPICE: 0.8.0 - 0.14.0

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External links
https://gitlab.freedesktop.org/spice/spice-common/commit/bb15d4815ab586b4c4a20f4a565970a44824c42c

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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