CVE-2020-10713

Vulnerability Description

A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.htmlMailing ListThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.htmlMailing ListThird Party Advisory
• http://www.openwall.com/lists/oss-security/2020/07/29/3Mailing ListThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1825243Issue TrackingThird Party Advisory
• https://cve.openeuler.org/#/CVEInfo/CVE-2020-10713Broken Link
• https://eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/Technical DescriptionThird Party Advisory
• https://kb.vmware.com/s/article/80181Third Party Advisory
• https://security.gentoo.org/glsa/202104-05Third Party Advisory
• https://security.netapp.com/advisory/ntap-20200731-0008/Third Party Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-gThird Party Advisory
• https://usn.ubuntu.com/4432-1/Third Party Advisory
• https://www.debian.org/security/2020/dsa-4735Third Party Advisory
• https://www.kb.cert.org/vuls/id/174059Third Party AdvisoryUS Government Resource
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.htmlMailing ListThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.htmlMailing ListThird Party Advisory