Out-of-bounds write in freerdp (Alpine package)
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-11521 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
freerdp (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU27988
Risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2020-11521
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in "libfreerdp/codec/planar.c". A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
Note: This vulnerability affects versions greater than 1.0
MitigationInstall update from vendor's website.
Vulnerable software versionsfreerdp (Alpine package): 2.0.0-r0
CPE2.3 External linkshttps://git.alpinelinux.org/aports/commit/?id=383e2aeb4cbae3a0f0fec27d8570a2d0957629db
https://git.alpinelinux.org/aports/commit/?id=e6fcdaf9a5dcd2bc2810a97e4d27f44027fe6003
https://git.alpinelinux.org/aports/commit/?id=b52104f5f284a471faab8c0847a03170c6e3da66
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.
