CVE-2016-9913
What it is
Memory leak in the v9fs_device_unrealize_common function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) via vectors involving the order of resource cleanup.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of 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: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-401
- Record status
- Modified
Affected
- Qemu ≤ 2.7.1
- Qemu 2.8.0
Attack profile CVSS 3.1 · 6.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
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-2016-9913.md and follow it. Check whether this project is affected by CVE-2016-9913. 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
- https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=4774718e5c194026ba5ee7a28d9be49be3080e42
- http://www.openwall.com/lists/oss-security/2016/12/06/11
- http://www.openwall.com/lists/oss-security/2016/12/08/7
- http://www.securityfocus.com/bid/94729
- https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html
- https://security.gentoo.org/glsa/201701-49
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=4774718e5c194026ba5ee7a28d9be49be3080e42
- http://www.openwall.com/lists/oss-security/2016/12/06/11
- http://www.openwall.com/lists/oss-security/2016/12/08/7
- http://www.securityfocus.com/bid/94729
- https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html
- https://security.gentoo.org/glsa/201701-49