CVE-2011-1776
Publication date 6 September 2011
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check the size of an Extensible Firmware Interface (EFI) GUID Partition Table (GPT) entry, which allows physically proximate attackers to cause a denial of service (heap-based buffer overflow and OOPS) or obtain sensitive information from kernel heap memory by connecting a crafted GPT storage device, a different vulnerability than CVE-2011-1577.
From the Ubuntu Security Team
Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges.
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | 11.10 oneiric |
Not affected
|
11.04 natty |
Fixed 2.6.38-10.44
|
|
10.10 maverick |
Fixed 2.6.35-30.60
|
|
10.04 LTS lucid |
Fixed 2.6.32-33.64
|
|
8.04 LTS hardy |
Fixed 2.6.24-29.94
|
|
linux-ec2 | 11.10 oneiric | Not in release |
11.04 natty | Not in release | |
10.10 maverick | Ignored end of life | |
10.04 LTS lucid |
Fixed 2.6.32-317.32
|
|
8.04 LTS hardy | Not in release | |
linux-fsl-imx51 | 11.10 oneiric | Not in release |
11.04 natty | Not in release | |
10.10 maverick | Not in release | |
10.04 LTS lucid |
Fixed 2.6.31-611.29
|
|
8.04 LTS hardy | Not in release | |
linux-lts-backport-maverick | 11.10 oneiric | Not in release |
11.04 natty | Not in release | |
10.10 maverick | Not in release | |
10.04 LTS lucid |
Fixed 2.6.35-30.60~lucid1
|
|
8.04 LTS hardy | Not in release | |
linux-lts-backport-natty | 11.10 oneiric | Not in release |
11.04 natty | Not in release | |
10.10 maverick | Not in release | |
10.04 LTS lucid |
Fixed 2.6.38-10.44~lucid1
|
|
8.04 LTS hardy | Not in release | |
linux-lts-backport-oneiric | 11.10 oneiric | Not in release |
11.04 natty | Not in release | |
10.10 maverick | Not in release | |
10.04 LTS lucid |
Not affected
|
|
8.04 LTS hardy | Not in release | |
linux-mvl-dove | 11.10 oneiric | Not in release |
11.04 natty | Not in release | |
10.10 maverick |
Fixed 2.6.32-417.34
|
|
10.04 LTS lucid |
Fixed 2.6.32-217.34
|
|
8.04 LTS hardy | Not in release | |
linux-ti-omap4 | 11.10 oneiric |
Not affected
|
11.04 natty |
Fixed 2.6.38-1209.16
|
|
10.10 maverick |
Fixed 2.6.35-903.25
|
|
10.04 LTS lucid | Not in release | |
8.04 LTS hardy | Not in release |
Patch details
Package | Patch details |
---|---|
linux |
Severity score breakdown
Parameter | Value |
---|---|
Base score |
|
Attack vector | Physical |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
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