Buffer overflow in spice (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU14533

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 - Buffer overflow

Exploit availability: No

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 (Alpine package): 0.10.0-r0 - 0.13.3-r2

CPE2.3

• cpe:2.3:a:alpine:spice_alpine_package:0.10.0-r0:*:*:*:*:alpine_linux:*:2.4
• cpe:2.3:a:alpine:spice_alpine_package:0.12.0-r0:*:*:*:*:alpine_linux:*:2.4
• cpe:2.3:a:alpine:spice_alpine_package:0.12.0-r1:*:*:*:*:alpine_linux:*:2.4

External links

https://git.alpinelinux.org/aports/commit/?id=013f0b0e4d9ed241f99fc3068deb2774e81d3a43
https://git.alpinelinux.org/aports/commit/?id=4c2af56913485da4fef6ab4f58ba5833a09fe234
https://git.alpinelinux.org/aports/commit/?id=4e7f2805ed301344dfc227ec46ed3db0338fdd15
https://git.alpinelinux.org/aports/commit/?id=03fec4585c1e4a7736a7727b5a03e477dbd27bab
https://git.alpinelinux.org/aports/commit/?id=4e1c871fdcc37ed141df6a2f53d3bd62fddd8fea
https://git.alpinelinux.org/aports/commit/?id=9a0074177b1efee56bc3f82db0651fa656877d9e

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.