CVE-2020-11526: Integer Overflow
A vulnerability was found in FreeRDP after 1.1 and before 2.0.0, there is a Stream pointer out of bounds in updaterecvsecondaryorder could lead out of bounds read later
Upstream Reference:
https://pub.freerdp.com/cve/CVE-2020-11526/
Upstream Commit:
https://github.com/FreeRDP/FreeRDP/commit/192856cb59974ee4d7d3e72cbeafa676aa7565cf
Other sources
libfreerdp/core/update.c in FreeRDP versions > 1.1 through 2.0.0-rc4 has an Out-of-bounds Read.
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/freerdp2to a version that resolves this vulnerability.Fixed in 2.3.0+dfsg1-2+deb11u1Fixed in 2.3.0+dfsg1-2+deb11u3Fixed in 2.11.7+dfsg1-6~deb12u1 - Upgrade
Upgrade
alpine/freerdpto a version that resolves this vulnerability.Fixed in 2.0.0-r0 - Upgrade
Upgrade
alpine/freerdp2to a version that resolves this vulnerability.Fixed in 2.0.0-r0 - Upgrade
Upgrade
redhat/freerdpto a version that resolves this vulnerability.Fixed in 2.0.0 - Upgrade
Upgrade
FreeRDPto a version that resolves this vulnerability.Fixed in 2.0.0
Event History
Frequently Asked Questions
What is the severity of CVE-2020-11526?
CVE-2020-11526 has been classified with a high severity due to the potential for an out-of-bounds read, which could be exploited in certain circumstances.
How do I fix CVE-2020-11526?
To fix CVE-2020-11526, upgrade FreeRDP to version 2.3.0+dfsg1-2+deb11u1 or 2.10.0+dfsg1-1, or apply patches provided by your operating system vendor.
Which versions of FreeRDP are affected by CVE-2020-11526?
FreeRDP versions greater than 1.1 up to 2.0.0-rc4 are affected by CVE-2020-11526.
Is CVE-2020-11526 a remote code execution vulnerability?
No, CVE-2020-11526 is an out-of-bounds read vulnerability and does not directly allow for remote code execution.
What platforms are impacted by CVE-2020-11526?
CVE-2020-11526 affects multiple platforms including Debian, Ubuntu, and openSUSE where FreeRDP is installed.