CVE-2014-2986
What it is
The vgic_distr_mmio_write function in the virtual guest interrupt controller (GIC) distributor (arch/arm/vgic.c) in Xen 4.4.x, when running on an ARM system, allows local guest users to cause a denial of service (NULL pointer dereference and host crash) via unspecified vectors.
At a glance
- Exploitability
- Can be exploited from the same network segment with a login. High risk of service disruption.
- Exploit odds
- 0.6% 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: 0.6% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Xen 4.4.0
Attack profile CVSS 2.0 · 5.5
- Attack vector
- Adjacent network
- Complexity
- Low
- Authentication
- Single
- Confidentiality
- None
- Integrity
- None
- Availability
- Complete
Raw vector
AV:A/AC:L/Au:S/C:N/I:N/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-2014-2986.md and follow it. Check whether this project is affected by CVE-2014-2986. 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
References
- http://www.openwall.com/lists/oss-security/2014/04/23/3
- http://www.openwall.com/lists/oss-security/2014/04/23/4
- http://www.openwall.com/lists/oss-security/2014/04/23/5
- http://www.securityfocus.com/bid/67047
- http://www.securitytracker.com/id/1030146
- http://xenbits.xen.org/xsa/advisory-94.html
- http://www.openwall.com/lists/oss-security/2014/04/23/3
- http://www.openwall.com/lists/oss-security/2014/04/23/4
- http://www.openwall.com/lists/oss-security/2014/04/23/5
- http://www.securityfocus.com/bid/67047
- http://www.securitytracker.com/id/1030146
- http://xenbits.xen.org/xsa/advisory-94.html