Vulnerability in merbanan rtl_433

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/merbanan/rtl_433
• github.com/merbanan/rtl_433/blob/25.12/src/devices/proflame2.c
• github.com/merbanan/rtl_433/commit/f35183aaf1d2d905d422fd70bcae4eb7349d6186
• github.com/merbanan/rtl_433/issues/3739
• github.com/merbanan/rtl_433/pull/3740
• www.vulncheck.com/advisories/rtl-433-through-25.12-stack-based-buffer-overflow-via-prof…