CVE-2012-0810
Published: 12 February 2020
The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows local users to cause a denial of service (stack corruption and panic) via a crafted application that triggers certain lock contention. If there is contention on this lock then the task may schedule out. As the task is using a per CPU stack, and another task may come in and use the same stack, the stack can become corrupted and cause the kernel to panic.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
hardy |
Ignored
(end of life)
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Ignored
(end of life)
|
|
| natty |
Ignored
(end of life)
|
|
| oneiric |
Ignored
(end of life)
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
|
|
linux-ec2 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Ignored
(end of life)
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Ignored
(end of life)
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Does not exist
|
|
| maverick |
Ignored
(end of life)
|
|
| natty |
Ignored
(end of life)
|
|
| oneiric |
Ignored
(end of life)
|
|
| upstream |
Ignored
(PREEMPT_RT_FULL not configured)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| 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 |