Incorrect Conversion between Numeric Types in freerdp (Alpine package)

1) Incorrect Conversion between Numeric Types

EUVDB-ID: #VU29361

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-4032

CWE-ID: CWE-681 - Incorrect Conversion between Numeric Types

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to an integer casting issue in "update_recv_secondary_order". A remote attacker can gain access to sensitive information on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

freerdp (Alpine package): 1.1.0-r0 - 2.1.1-r0

CPE2.3

• cpe:2.3:o:alpine:freerdp_alpine_package:1.1.0-r0:*:*:*:*:alpine_linux:*:3.1
• cpe:2.3:o:alpine:freerdp_alpine_package:1.2.0-r0:*:*:*:*:alpine_linux:*:3.2
• cpe:2.3:o:alpine:freerdp_alpine_package:2.0.0-r0:*:*:*:*:alpine_linux:*:3.8

External links

https://git.alpinelinux.org/aports/commit/?id=1bb47e3a21445c5f2faa983e5a2f9ac0d4861ca9
https://git.alpinelinux.org/aports/commit/?id=723c4c1dd116dd6a5bc4337744353b36da6dc4de

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.