CVE-2015-7512
Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.
- CVSS 3.1
- 9.0 CRITICALCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 7.73% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- qemu/qemu · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux workstation · redhat/openstack · redhat/virtualization · debian/debian linux · oracle/linux
- Source
- secalert@redhat.com
EPSS 7.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f
- http://rhn.redhat.com/errata/RHSA-2015-2694.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2695.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2696.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3469Third Party Advisory
- http://www.debian.org/security/2016/dsa-3470Third Party Advisory
- http://www.debian.org/security/2016/dsa-3471Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/11/30/3Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
- http://www.securityfocus.com/bid/78230Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034527Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f
- http://rhn.redhat.com/errata/RHSA-2015-2694.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2695.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2696.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3469Third Party Advisory
- http://www.debian.org/security/2016/dsa-3470Third Party Advisory
- http://www.debian.org/security/2016/dsa-3471Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/11/30/3Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
- http://www.securityfocus.com/bid/78230Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034527Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.