Infinite loop Affecting riot-os/riot package, versions [,2024.07)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-RIOTOSRIOT-8445294
- published1 Dec 2024
- disclosed29 Nov 2024
- creditUnknown
Introduced: 29 Nov 2024
CVE-2024-53980 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Infinite loop through the handling of IEEE 802.15.4 packets. An attacker can cause the system to enter an endless loop by sending a packet with a spoofed length byte and optionally a spoofed FCS. This issue arises because the system fails to properly validate the CRC of the packet and incorrectly handles the packet length, leading to improper state transitions in the radio's operation.
PoC
bool realCRC = rfcore_peek_rx_fifo(pkt_len) & CC2538_CRC_BIT_MASK;
pkt_len += 0x80; // Fake the spoofed length bit
bool fakeCRC = rfcore_peek_rx_fifo(pkt_len) & CC2538_CRC_BIT_MASK;
if (!realCRC && fakeCRC) {
DEBUG("realCRC: %i, fakeCRC: %i\n", realCRC, fakeCRC);
}
if (fakeCRC) {