CVE-2007-3732

Publication date 7 November 2019

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRACE_IRQS_ON and before enabling interrupts, so that "current" references work. Without this, "current" used in the window between iret_exc and the middle of error_code where %fs is reset, would crash.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty
Not affected
12.04 LTS precise
Not affected
linux-armadaxp 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected
linux-flo 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-goldfish 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-grouper 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-linaro-omap 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-linaro-shared 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-linaro-vexpress 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-quantal 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-raring 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-saucy 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-trusty 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected
linux-lts-utopic 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-lts-vivid 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-lts-wily 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-lts-xenial 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty
Not affected
12.04 LTS precise Not in release
linux-maguro 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-mako 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-manta 16.04 LTS xenial Not in release
15.10 wily
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-qcm-msm 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-raspi2 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-ti-omap4 16.04 LTS xenial Not in release
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected

Notes

jdstrand

android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support

Patch details

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

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H