rtl_433 through 25.12 Stack-Based Buffer Overflow via Proflame 2 Decoder
Impact
rtl_433 through 25.12 contains a stack-based buffer overflow vulnerability in proflame2_mc() that allows nearby attackers to write past a 7-byte stack buffer by sending more than seven valid Manchester-coded words. Attackers can transmit a crafted OOK radio signal or supply a crafted signal file to crash rtl_433 and corrupt stack memory, enabling control-flow hijacking on builds without stack canaries.
Source excerpt · VulnCheckAffected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
merbanan · rtl_433
Other versions: unaffected
| Version / range | Source status |
|---|---|
| 21.12 through 25.12 (inclusive) | affected |
Original source description
rtl_433 through 25.12 contains a stack-based buffer overflow vulnerability in proflame2_mc() that allows nearby attackers to write past a 7-byte stack buffer by sending more than seven valid Manchester-coded words. Attackers can transmit a crafted OOK radio signal or supply a crafted signal file to crash rtl_433 and corrupt stack memory, enabling control-flow hijacking on builds without stack canaries.
References
- Source reference github.com/merbanan/rtl_433/issues/3739
- Patch github.com/merbanan/rtl_433/pull/3740
- Patch github.com/merbanan/rtl_433/commit/f35183aaf1d2d905d422fd70bcae4eb7349d6186
- Source reference github.com/merbanan/rtl_433/blob/25.12/src/devices/proflame2.c
- Source reference github.com/merbanan/rtl_433
- Security advisory www.vulncheck.com/advisories/rtl-433-through-25.12-stack-based-buffer-overflow-via-proflame-2-decoder