CVE-2015-8370: fedoraproject fedora

Vulnerability summary

CVE-2015-8370 is a high (CVSS 7.4) vulnerability in fedoraproject fedora. EPSS estimates a 1.09% chance of exploitation in the next 30 days, higher than 64.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 16-12-2015
   PublishedVulnerability first disclosed.
2. 21-10-2024
   Last modifiedVulnerability information updated.

Description

Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an "Off-by-two" or "Out of bounds overwrite" memory error.

• CWE-264Permissions, Privileges, and Access ControlsWeaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.
• CWE-191Integer Underflow (Wrap or Wraparound)The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.