CVE-2023-39355
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Versions of FreeRDP on the 3.x release branch before beta3 are subject to a Use-After-Free in processing `RDPGFX_CMDID_RESETGRAPHICS` packets. If `context->maxPlaneSize` is 0, `context->planesBuffer` will be freed. However, without updating `context->planesBuffer`, this leads to a Use-After-Free exploit vector. In most environments this should only result in a crash. This issue has been addressed in version 3.0.0-beta3 and users of the beta 3.x releases are advised to upgrade. There are no known workarounds for this vulnerability.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.27% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- freerdp/freerdp · debian/debian linux
- Source
- security-advisories@github.com
References
- https://github.com/FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beeePatch
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hvwj-vmg6-2f5hExploit, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202401-16
- https://github.com/FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beeePatch
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hvwj-vmg6-2f5hExploit, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202401-16
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.