CVE-2011-2022
What it is
The agp_generic_remove_memory function in drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5 does not validate a certain start parameter, which allows local users to gain privileges or cause a denial of service (system crash) via a crafted AGPIOC_UNBIND agp_ioctl ioctl call, a different vulnerability than CVE-2011-1745.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 6.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Linux Kernel < 2.6.38.5
- Redhat Enterprise Linux 5.0
- Redhat Enterprise Linux Aus 5.6
- Redhat Enterprise Linux Desktop 5.0
- Redhat Enterprise Linux Eus 5.6
- Redhat Enterprise Linux Server 5.0
- Redhat Enterprise Linux Workstation 5.0
Attack profile CVSS 2.0 · 6.9
- Attack vector
- Local
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
Raw vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2011-2022.md and follow it. Check whether this project is affected by CVE-2011-2022. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://openwall.com/lists/oss-security/2011/04/21/4
- http://openwall.com/lists/oss-security/2011/04/22/7
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5
- https://bugzilla.redhat.com/show_bug.cgi?id=698996
- https://lkml.org/lkml/2011/4/14/293
- http://openwall.com/lists/oss-security/2011/04/21/4
- http://openwall.com/lists/oss-security/2011/04/22/7
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5
- https://bugzilla.redhat.com/show_bug.cgi?id=698996
- https://lkml.org/lkml/2011/4/14/293
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=194b3da873fd334ef183806db751473512af29ce
- http://openwall.com/lists/oss-security/2011/04/21/4
- http://openwall.com/lists/oss-security/2011/04/22/7
- http://rhn.redhat.com/errata/RHSA-2011-0927.html
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5
- http://www.securityfocus.com/bid/47843
- https://bugzilla.redhat.com/show_bug.cgi?id=698996
- https://lkml.org/lkml/2011/4/14/293
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=194b3da873fd334ef183806db751473512af29ce
- http://openwall.com/lists/oss-security/2011/04/21/4
- http://openwall.com/lists/oss-security/2011/04/22/7
- http://rhn.redhat.com/errata/RHSA-2011-0927.html
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5
- http://www.securityfocus.com/bid/47843
- https://bugzilla.redhat.com/show_bug.cgi?id=698996
- https://lkml.org/lkml/2011/4/14/293