CVE-2014-4607

Publication date 9 July 2014

Last updated 18 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers to execute arbitrary code via a crafted Literal Run.

Read the notes from the security team

Status

Package Ubuntu Release Status
grub2 25.10 questing
Fixed 2.04-1ubuntu37
25.04 plucky
Fixed 2.04-1ubuntu37
24.10 oracular
Fixed 2.04-1ubuntu37
24.04 LTS noble
Fixed 2.04-1ubuntu37
23.10 mantic
Fixed 2.04-1ubuntu37
23.04 lunar
Fixed 2.04-1ubuntu37
22.10 kinetic
Fixed 2.04-1ubuntu37
22.04 LTS jammy
Fixed 2.04-1ubuntu37
21.10 impish
Fixed 2.04-1ubuntu37
21.04 hirsute
Fixed 2.04-1ubuntu37
20.10 groovy
Fixed 2.04-1ubuntu35.2
20.04 LTS focal
Fixed 2.04-1ubuntu26.8
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
grub2-signed 25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Fixed 1.157
21.04 hirsute
Fixed 1.157
20.10 groovy
Fixed 1.155.2
20.04 LTS focal
Fixed 1.142.10
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
krfb 25.10 questing
Fixed 4:4.13.97-0ubuntu2
25.04 plucky
Fixed 4:4.13.97-0ubuntu2
24.10 oracular
Fixed 4:4.13.97-0ubuntu2
24.04 LTS noble
Fixed 4:4.13.97-0ubuntu2
23.10 mantic
Fixed 4:4.13.97-0ubuntu2
23.04 lunar
Fixed 4:4.13.97-0ubuntu2
22.10 kinetic
Fixed 4:4.13.97-0ubuntu2
22.04 LTS jammy
Fixed 4:4.13.97-0ubuntu2
21.10 impish
Fixed 4:4.13.97-0ubuntu2
21.04 hirsute
Fixed 4:4.13.97-0ubuntu2
20.10 groovy
Fixed 4:4.13.97-0ubuntu2
20.04 LTS focal
Fixed 4:4.13.97-0ubuntu2
18.04 LTS bionic
Fixed 4:4.13.97-0ubuntu2
16.04 LTS xenial
Fixed 4:4.13.97-0ubuntu2
14.04 LTS trusty
Fixed 4:4.13.0-0ubuntu1.1
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
lzo2 25.10 questing
Fixed 2.06-1.2ubuntu2
25.04 plucky
Fixed 2.06-1.2ubuntu2
24.10 oracular
Fixed 2.06-1.2ubuntu2
24.04 LTS noble
Fixed 2.06-1.2ubuntu2
23.10 mantic
Fixed 2.06-1.2ubuntu2
23.04 lunar
Fixed 2.06-1.2ubuntu2
22.10 kinetic
Fixed 2.06-1.2ubuntu2
22.04 LTS jammy
Fixed 2.06-1.2ubuntu2
21.10 impish
Fixed 2.06-1.2ubuntu2
21.04 hirsute
Fixed 2.06-1.2ubuntu2
20.10 groovy
Fixed 2.06-1.2ubuntu2
20.04 LTS focal
Fixed 2.06-1.2ubuntu2
18.04 LTS bionic
Fixed 2.06-1.2ubuntu2
16.04 LTS xenial
Fixed 2.06-1.2ubuntu2
14.04 LTS trusty
Fixed 2.06-1.2ubuntu1.1
13.10 saucy Ignored end of life
12.04 LTS precise
Fixed 2.06-1ubuntu0.1
10.04 LTS lucid Ignored end of life
grub2-unsigned 25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 2.04-1ubuntu47.4
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release

Notes

alexmurray

grub2 has a vendored copy of minilzo which is part of lzo2 so likely any vulnerabilities that affect lzo2 may also affect minilzo in grub2 and hence grub2-signed

mdeslaur

grub2 since bug 1911440 now pulls in the system lzo2 when building, so focal+ is fixed grub2-signed on bionic now ships the grub binary built on a later release, so it is not vulnerable to this CVE

Patch details

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

Package Patch details
grub2

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references