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CVE-2015-8370

Publication date 11 December 2015

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Status

Package Ubuntu Release Status
grub2 15.10 wily
Fixed 2.02~beta2-29ubuntu0.2
15.04 vivid
Fixed 2.02~beta2-22ubuntu1.4
14.04 LTS trusty
Fixed 2.02~beta2-9ubuntu1.6
12.04 LTS precise
Fixed 1.99-21ubuntu3.19

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
grub2