CLSA-2026-1791568721
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1791568721.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1791568721
- Upstream
- Published
- 2026-10-09T17:58:57Z
- Modified
- 2026-10-26T09:43:21Z
- Summary
- freerdp: Fix of 6 CVEs
- Details
-
- CVE-2026-91953, CVE-2026-91964: bound every write in nego_send_negotiation_request() with Stream_EnsureRemainingCapacity(); the routing token taken from the server's LB_LOAD_BALANCE_INFO was written into a fixed 512 byte stream unchecked, overflowing the heap allocation
- CVE-2026-91963: allocate wStream buffers with calloc() instead of malloc(), so the urbdrc completion path can no longer return the untouched tail of a freshly allocated buffer - and with it live heap pointers - to the server when a USB transfer returns short
- CVE-2026-91959: require four remaining bytes in rts_read_result() before reading result and reason; a malicious RD Gateway could end a BIND_ACK fragment two bytes into a result and make the parser over-read it
- CVE-2026-91957: do not free the SMARTCARD_DEVICE on the DeviceServiceEntry() failure path once RegisterDevice() has succeeded; devman kept the freed pointer and dereferenced DEVICE.Free through it on channel teardown
- CVE-2026-91956: bound the interface, alternate-setting and endpoint indices in func_get_ep_desc(); it indexed by array position while the validator indexed by InterfaceNumber, so a permuted descriptor produced an out-of-bounds read of a pointer that was then dereferenced
- References
-
- https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1791568721.html
- https://nvd.nist.gov/vuln/detail/CVE-2026-91953
- https://nvd.nist.gov/vuln/detail/CVE-2026-91956
- https://nvd.nist.gov/vuln/detail/CVE-2026-91957
- https://nvd.nist.gov/vuln/detail/CVE-2026-91959
- https://nvd.nist.gov/vuln/detail/CVE-2026-91963
- https://nvd.nist.gov/vuln/detail/CVE-2026-91964
Affected packages
TuxCare:CentOS:7 / freerdp
Package
- Name
- freerdp
- Purl
- pkg:rpm/tuxcare/freerdp?distro=centos-7
TuxCare:CentOS:7 / freerdp-devel
Package
- Name
- freerdp-devel
- Purl
- pkg:rpm/tuxcare/freerdp-devel?distro=centos-7
TuxCare:CentOS:7 / freerdp-libs
Package
- Name
- freerdp-libs
- Purl
- pkg:rpm/tuxcare/freerdp-libs?distro=centos-7
TuxCare:CentOS:7 / libwinpr
Package
- Name
- libwinpr
- Purl
- pkg:rpm/tuxcare/libwinpr?distro=centos-7