UBUNTU-CVE-2023-39356
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UBUNTU-CVE-2023-39356
Summary:
Details: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function `gdi_multi_opaque_rect`. In particular there is no code to validate if the value `multi_opaque_rect->numRectangles` is less than 45. Looping through `multi_opaque_rect->`numRectangles without proper boundary checks can lead to Out-of-Bounds Read errors which will likely lead to a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
References: https://ubuntu.com/security/CVE-2023-39356, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q5v5-qhj5-mh6m, https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/gdi/gdi.c#L723C1-L758, https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/core/orders.c#L1503-L1504, https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/include/freerdp/primary.h#L186-L196, https://ubuntu.com/security/notices/USN-6522-1, https://ubuntu.com/security/notices/USN-6522-2, https://www.cve.org/CVERecord?id=CVE-2023-39356
Affected packages
Package
Name: freerdp2
Purl: pkg:deb/ubuntu/[email protected]+dfsg1-0ubuntu0.18.04.4+esm2?arch=source&distro=esm-infra/bionic
Affected ranges
Type: ECOSYSTEM
Events:
