DocumentationSeverity
7.1
High severity
Details
- CVSS score
- 7.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Overview
About vulnerability
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, the glyph_cache_get function in libfreerdp/cache/glyph.c checks whether index is greater than cache->number instead of greater than or equal to it. A malicious RDP server can use GLYPH_FRAGMENT_USE replay in update_process_glyph_fragments to make the default cache receive index 254 when cache->number is 254, reading one pointer beyond the entries array and dereferencing it as a glyph. This can crash the client and may disclose adjacent heap data. This issue is fixed in version 3.27.0.Details
- Affected product:
- Amazon Linux 2 ELS , CentOS 7 ELS , CloudLinux 7 ELS , Oracle Linux 7 ELS , RHEL 7 ELS
- Affected packages:
- freerdp @ 2.1.1 (+4 more)