CVE-2022-22819
NXP LPC55S66JBD64, LPC55S66JBD100, LPC55S66JEV98, LPC55S69JBD64, LPC55S69JBD100, and LPC55S69JEV98 microcontrollers (ROM version 1B) have a buffer overflow in parsing SB2 updates before the signature is verified.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
NXP LPC55S66JBD64, LPC55S66JBD100, LPC55S66JEV98, LPC55S69JBD64, LPC55S69JBD100, and LPC55S69JEV98 microcontrollers (ROM version 1B) have a buffer overflow in parsing SB2 updates before the signature is verified. This can allow an attacker to achieve non-persistent code execution via a crafted unsigned update.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.40% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- nxp/lpc55s66jbd64 firmware · nxp/lpc55s66jbd100 firmware · nxp/lpc55s66jev98 firmware · nxp/lpc55s69jbd64 firmware · nxp/lpc55s69jbd100 firmware · nxp/lpc55s69jev98 firmware
- Source
- cve@mitre.org
References
- https://oxide.computer/blog/another-vulnerability-in-the-lpc55s69-romExploit, Third Party Advisory
- https://www.nxp.comVendor Advisory
- https://oxide.computer/blog/another-vulnerability-in-the-lpc55s69-romExploit, Third Party Advisory
- https://www.nxp.comVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.