Vulnerability Details : CVE-2020-11523
libfreerdp/gdi/region.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Integer Overflow.
Vulnerability category: Overflow
Products affected by CVE-2020-11523
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:-:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-11523
1.98%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 89 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-11523
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
NIST | |
6.6
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.7
|
5.9
|
NIST |
CWE ids for CVE-2020-11523
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-11523
-
https://pub.freerdp.com/cve/CVE-2020-11523/pocAnalysis_2.pdf
Exploit;Vendor Advisory
-
https://usn.ubuntu.com/4382-1/
USN-4382-1: FreeRDP vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/4379-1/
USN-4379-1: FreeRDP vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qrh-8cp8-4x42
Integer overflow in region.c · Advisory · FreeRDP/FreeRDP · GitHubPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html
[SECURITY] [DLA 2356-1] freerdp security updateThird Party Advisory
-
https://github.com/FreeRDP/FreeRDP/commits/master
Commits · FreeRDP/FreeRDP · GitHubPatch;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
[security-announce] openSUSE-SU-2020:1090-1: important: Security updateThird Party Advisory
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