VulnerabilityModified
CVE-2020-10648
Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images by providing a crafted FIT image to a system configured to boot the default configuration.
HIGH 7.8EPSS 1.40%
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
Das U-Boot through 2020.01 allows attackers to bypass verified boot restrictions and subsequently boot arbitrary images by providing a crafted FIT image to a system configured to boot the default configuration.
- 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-20
- Affected
- denx/u-boot · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/03/18/5Mailing List, Third Party Advisory
- https://github.com/u-boot/u-boot/commits/masterPatch, Third Party Advisory
- https://labs.f-secure.com/advisories/das-u-boot-verified-boot-bypass/Exploit, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/03/18/5Mailing List, Third Party Advisory
- https://github.com/u-boot/u-boot/commits/masterPatch, Third Party Advisory
- https://labs.f-secure.com/advisories/das-u-boot-verified-boot-bypass/Exploit, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-577017.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.