CVE-2015-7504
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.64% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.6% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-10-16 20:00Z9 YR AGO
- Last updated
- 2024-08-06 07:51Z2 YR AGO
- Reserved
- 2015-09-29
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- e1a62e6e2db76810e01f568782e4d6bae1fc404e5fda9da381156db193bd871e
05 Affected products
06 References
- rhn.redhat.comRHSA-2015:2694http://rhn.redhat.com/errata/RHSA-2015-2694.html
- www.securitytracker.com1034268http://www.securitytracker.com/id/1034268
- www.securityfocus.com78227http://www.securityfocus.com/bid/78227
- www.openwall.com[oss-security] 20151130 CVE-2015-7504 Qemu: net: pcnet: heap overflow vulnerability in loopback modehttp://www.openwall.com/lists/oss-security/2015/11/30/2
- lists.gnu.org[Qemu-devel] 20151130 [PATCH for 2.5 1/2] net: pcnet: add check to validate receive data size(CVE-2015-7504)https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg06342.html
- xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-162.html
- www.debian.orgDSA-3469http://www.debian.org/security/2016/dsa-3469
- www.debian.orgDSA-3470http://www.debian.org/security/2016/dsa-3470
- security.gentoo.orgGLSA-201604-03https://security.gentoo.org/glsa/201604-03
- www.debian.orgDSA-3471http://www.debian.org/security/2016/dsa-3471
- security.gentoo.orgGLSA-201602-01https://security.gentoo.org/glsa/201602-01
- rhn.redhat.comRHSA-2015:2696http://rhn.redhat.com/errata/RHSA-2015-2696.html
- rhn.redhat.comRHSA-2015:2695http://rhn.redhat.com/errata/RHSA-2015-2695.html
07 Fixed in
Debian 12
- qemu Fixed in 1:2.5+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:2.5+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:2.5+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- qemu Fixed in 2.0.0+dfsg-2ubuntu1.21
- xen Fixed in 4.4.2-0ubuntu0.14.04.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.