Amazon Linux 2027 Preview Security Advisory: ALAS2027-2026-303
Advisory Released Date: 2026-11-02
Advisory Updated Date: 2026-11-02
FAQs regarding Amazon Linux ALAS/CVE Severity
Fix GHSA-66mr-7wc7-23vc: FreeRDP client can abort while logging a malformed RDPDR device announcement
Fix GHSA-fqw6-jf2h-6fj6: RDPGFX ALPHA `WIRETOSURFACE_2` command can abort a FreeRDP client
Fix GHSA-x7w3-32ch-x2jq: winpr image conversion: heap over-read encoding 16 bpp DIBs to PNG; malformed PNG/JPEG abort or exit the process
Fix GHSA-m7xq-5f7v-hjvw: FreeRDP proxy has no cumulative limit for intercepted DVC message reassembly
Fix GHSA-2557-79qc-6gfr: FreeRDP WinPR Kerberos SSPI retrieveSomeTgt double free of the default realm
Fix GHSA-8rjm-m7xg-mg6m: RD Gateway extended-auth packet crashes FreeRDP client before tunnel authentication
Fix GHSA-jqf4-4p68-4p43: Opted-in GLYPH_INDEX client abort from unrepresentable background width
Fix GHSA-r387-jjq3-87hv: Serial RDPDR device-control output length can exhaust FreeRDP client memory
Fix GHSA-cx9c-q4jc-wm6c: Dynamic rdpsnd channel close leaves playback thread using a freed callback
Fix GHSA-983v-jp34-f3fm: FreeRDP smartcard emulation: use-after-free in ReleaseContext racing in-flight GetStatusChange
Fix GHSA-8g9g-hqqp-fw69: FreeRDP client leaks file descriptors on repeated parallel-device CREATE requests, allowing a hostile RDP server to exhaust the client process
Fix GHSA-f53w-3364-jr35: FreeRDP RDPGFX CREATE_SURFACE integer wrap causes a 32-bit heap overwrite
Fix GHSA-m59q-wm7v-mp57: FreeRDP RDPGFX client: heap out-of-bounds write in HashTable_GetKeys via surface-key truncation
Fix GHSA-x8vp-ff7m-294g: Authenticated remdesk channel payload aborts FreeRDP shadow server through stream-capacity assertion
Fix GHSA-wg7g-gx9g-r96c: FreeRDP truncated GSM610/WAV49 audio causes an out-of-bounds read
Fix GHSA-799q-hjgw-g55g: WinPR image readers abort/exit the client process on malformed PNG/JPEG (missing library error handling)
Fix GHSA-x26g-fp9v-c2pg: FreeRDP WebSocket client spins indefinitely when TLS closes during a frame payload
Fix GHSA-j536-qc58-pmf8: Partial Early User Authorization reads can overflow a FreeRDP client receive buffer
Fix GHSA-6wqx-rv3q-vcxp: FreeRDP client use-after-free in the rdpgfx dynamic virtual channel on channel close
Fix GHSA-fqcj-rwww-2498: Zero-length dynamic-channel DATA messages can spin FreeRDP shadow-server threads
Fix GHSA-q82v-5wjg-6h57: FreeRDP RD Gateway RPC client heap buffer overflow in rpc_client_recv_fragment
Fix GHSA-5qqp-5ffm-m3p9: Malformed drive request silently stops FreeRDP's drive worker and leaves later requests queued
Fix GHSA-qw7w-hhxq-763c: FreeRDP proxy DRDYNVC tracker race causes use-after-free and process crash
Fix GHSA-4vh4-3pc3-32p7: RD Gateway packet length causes 2 GiB client allocation before tunnel authentication
Fix GHSA-xc85-4mqc-xgcx: FreeRDP proxy out-of-bounds write in bitmap cache v2 capability handling
Fix GHSA-w897-ffhv-5j7g: USB redirection control-channel close can race a channel write in FreeRDP
Fix GHSA-x4x6-2hrm-hvq9: RD Gateway control packet can make FreeRDP client spin at full CPU
Fix GHSA-v85m-wg84-5ffh: FreeRDP URBDRC frees active libusb transfers during teardown
Fix GHSA-fg78-v8j5-8697: FreeRDP planar codec: non-atomic geometry and buffer update on failed ResetGraphics causes heap out-of-bounds write
Fix GHSA-jq25-3374-4262: Incomplete fix for GHSA-43hh-p3vw-hfx3: CN-fallback and IP-literal cert identity checks were never patched
Fix GHSA-rrp5-666j-g6gp: FreeRDP DRDYNVC DATA_FIRST length causes an uncapped client allocation
Fix GHSA-c426-ppvf-jpfg: Zero-width RDPGFX ResetGraphics causes a later FreeRDP X11 client crash
Fix GHSA-xjhw-2r55-m95g: FreeRDP planar bitmap decode: RDPGFX ResetGraphics race causes use-after-free of shared planar buffers
Fix GHSA-v3q2-qjvf-7rqw: FreeRDP proxy dyn-channel-dump session teardown causes cross-thread use-after-free
Affected Packages:
freerdp
Issue Correction:
Run dnf update freerdp --releasever 2027.0.20261102 or dnf update --advisory ALAS2027-2026-303 --releasever 2027.0.20261102 to update your system.
aarch64:
freerdp-server-3.32.2-1.amzn2027.aarch64
freerdp-debugsource-3.32.2-1.amzn2027.aarch64
freerdp-libs-debuginfo-3.32.2-1.amzn2027.aarch64
libwinpr-debuginfo-3.32.2-1.amzn2027.aarch64
freerdp-server-debuginfo-3.32.2-1.amzn2027.aarch64
libwinpr-devel-3.32.2-1.amzn2027.aarch64
freerdp-devel-3.32.2-1.amzn2027.aarch64
libwinpr-3.32.2-1.amzn2027.aarch64
freerdp-debuginfo-3.32.2-1.amzn2027.aarch64
freerdp-3.32.2-1.amzn2027.aarch64
freerdp-libs-3.32.2-1.amzn2027.aarch64
src:
freerdp-3.32.2-1.amzn2027.src
x86_64:
libwinpr-debuginfo-3.32.2-1.amzn2027.x86_64
libwinpr-devel-3.32.2-1.amzn2027.x86_64
libwinpr-3.32.2-1.amzn2027.x86_64
freerdp-server-debuginfo-3.32.2-1.amzn2027.x86_64
freerdp-debuginfo-3.32.2-1.amzn2027.x86_64
freerdp-libs-3.32.2-1.amzn2027.x86_64
freerdp-debugsource-3.32.2-1.amzn2027.x86_64
freerdp-devel-3.32.2-1.amzn2027.x86_64
freerdp-3.32.2-1.amzn2027.x86_64
freerdp-server-3.32.2-1.amzn2027.x86_64
freerdp-libs-debuginfo-3.32.2-1.amzn2027.x86_64