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F5 BIG-IP - GRUB2 vulnerability CVE-2015-8370
Information
Severity
Severity
Medium
Family
Family
F5 Local Security Checks
CVSSv2 Base
CVSSv2 Base
6.9
CVSSv2 Vector
CVSSv2 Vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
8 years ago
Modified
Modified
2 years ago
Summary
The remote host is missing a security patch.
Insight
Insight
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.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
See the referenced vendor advisory for a solution.