CVE-2020-12303 Use after free in Intel(R) CSME, Intel(R) TXE
An authenticated local attacker can exploit a use-after-free flaw in Intel CSME/TXE firmware to escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-12303?
CVE-2020-12303 is a high-severity use after free vulnerability in Intel(R) CSME, Intel(R) TXE, published on 12 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use after free in DAL subsystem for Intel(R) CSME versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE 3.1.80, 4.0.30 may allow an authenticated user to potentially enable escalation of privileges via local access.
Weakness: CWE-416
Which versions are affected by CVE-2020-12303?
It affects 2 products.
Products include Intel Converged Security and Manageability Engine, Intel Trusted Execution Technology.
How do I fix CVE-2020-12303?
No fix has been published for CVE-2020-12303 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-12303 being exploited?
There is no known exploitation of CVE-2020-12303 in the wild and no public exploit code.
Other vulnerabilities in Intel(R) CSME, Intel(R) TXE
- CVE-2020-12297 Privilege escalation in Intel(R) CSME, Intel TXE
- CVE-2020-24516 Privilege escalation in Intel(R) CSME versions
- CVE-2020-8705 Misconfiguration in Intel(R) Boot Guard, Intel(R) CSME, Intel(R) TXE, Intel(R) SPS
- CVE-2020-8745 Privilege escalation in Intel(R) CSME, Intel(R) TXE
- CVE-2020-8703 Privilege escalation in Intel(R) CSME versions
Sources
Also known as GHSA-hwgw-9wx9-2x6f.