CVE-2015-7504

Publication date 30 November 2015

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode.

Status

Package Ubuntu Release Status
qemu 15.10 wily
Fixed 1:2.3+dfsg-5ubuntu9.1
15.04 vivid
Fixed 1:2.2+dfsg-5expubuntu9.7
14.04 LTS trusty
Fixed 2.0.0+dfsg-2ubuntu1.21
12.04 LTS precise Not in release
xen 15.10 wily
Not affected
15.04 vivid
Not affected
14.04 LTS trusty
Fixed 4.4.2-0ubuntu0.14.04.4
12.04 LTS precise
Fixed 4.1.6.1-0ubuntu0.12.04.8
qemu-kvm 15.10 wily Not in release
15.04 vivid Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Fixed 1.0+noroms-0ubuntu14.26

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references