Vulnerability Details : CVE-2020-11526
Potential exploit
libfreerdp/core/update.c in FreeRDP versions > 1.1 through 2.0.0-rc4 has an Out-of-bounds Read.
Vulnerability category: Overflow
Products affected by CVE-2020-11526
- 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-2020-11526
0.19%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-11526
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:N/A:P |
6.8
|
2.9
|
NIST | |
2.2
|
LOW | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L |
0.7
|
1.4
|
NIST |
CWE ids for CVE-2020-11526
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
-
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-2020-11526
-
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97jw-m5w5-xvf9
Stream pointer out of bounds in update_recv_secondary_order could lead out of bounds read later · Advisory · FreeRDP/FreeRDP · GitHubPatch;Third Party Advisory
-
https://usn.ubuntu.com/4382-1/
USN-4382-1: FreeRDP vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://pub.freerdp.com/cve/CVE-2020-11526/pocAnalysis_4.pdf
Exploit;Vendor Advisory
-
https://usn.ubuntu.com/4379-1/
USN-4379-1: FreeRDP vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html
[SECURITY] [DLA 2356-1] freerdp security updateMailing List;Third 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 updateMailing List;Third Party Advisory
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