CVE-2009-2910
What it is
arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.31.4 on the x86_64 platform does not clear certain kernel registers before a return to user mode, which allows local users to read register values from an earlier process by switching an ia32 process to 64-bit mode.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. Limited direct impact.
- 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: 2.1 LOW (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-200 · Information exposure
- Record status
- Modified
Affected
- Linux Kernel < 2.6.31.4
- Suse Linux Enterprise Debuginfo 10
- Opensuse 11.0
- Suse Linux Enterprise Desktop 10
- Suse Linux Enterprise Server 9
- Suse Linux Enterprise Server 10
- Suse Linux Enterprise Software Development Kit 10
- Canonical Ubuntu Linux 6.06
Attack profile CVSS 2.0 · 2.1
- Attack vector
- Local
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- None
- Availability
- None
Raw vector
AV:L/AC:L/Au:N/C:P/I:N/A:N
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-2009-2910.md and follow it. Check whether this project is affected by CVE-2009-2910. 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://lkml.org/lkml/2009/10/1/164
- https://bugzilla.redhat.com/show_bug.cgi?id=526788
- http://lkml.org/lkml/2009/10/1/164
- https://bugzilla.redhat.com/show_bug.cgi?id=526788
References
- http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git%3Ba=commit%3Bh=24e35800cdc4350fc34e2bed37b608a9e13ab3b6
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://lkml.org/lkml/2009/10/1/164
- http://marc.info/?l=oss-security&m=125442304214452&w=2
- http://marc.info/?l=oss-security&m=125444390112831&w=2
- http://marc.info/?l=oss-security&m=125511635004768&w=2
- http://secunia.com/advisories/36927
- http://secunia.com/advisories/37075
- http://secunia.com/advisories/37351
- http://support.avaya.com/css/P8/documents/100073666
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.4
- http://www.openwall.com/lists/oss-security/2009/10/02/1
- http://www.redhat.com/support/errata/RHSA-2009-1671.html
- http://www.securityfocus.com/bid/36576
- http://www.ubuntu.com/usn/usn-864-1
- https://bugzilla.redhat.com/show_bug.cgi?id=526788
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10823
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7359
- https://rhn.redhat.com/errata/RHSA-2009-1540.html
- https://rhn.redhat.com/errata/RHSA-2010-0046.html
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html
- http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git%3Ba=commit%3Bh=24e35800cdc4350fc34e2bed37b608a9e13ab3b6