CVE-2018-10839

Publication date 16 October 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	21.04 hirsute	Fixed 1:2.12+dfsg-3ubuntu9
	20.10 groovy	Fixed 1:2.12+dfsg-3ubuntu9
	20.04 LTS focal	Fixed 1:2.12+dfsg-3ubuntu9
	19.10 eoan	Fixed 1:2.12+dfsg-3ubuntu9
	19.04 disco	Fixed 1:2.12+dfsg-3ubuntu9
	18.10 cosmic	Fixed 1:2.12+dfsg-3ubuntu8.1
	18.04 LTS bionic	Fixed 1:2.11+dfsg-1ubuntu7.8
	16.04 LTS xenial	Fixed 1:2.5+dfsg-5ubuntu10.33
	14.04 LTS trusty	Fixed 2.0.0+dfsg-2ubuntu1.44
qemu-kvm	21.04 hirsute	Not in release
	20.10 groovy	Not in release
	20.04 LTS focal	Not in release
	19.10 eoan	Not in release
	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
qemu	Other: https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.html Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=fdc89e90fac40c5ca2686733df17b6423fb8d8fb

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3826-1
QEMU vulnerabilities
26 November 2018