Heap-based buffer overflow in QEMU - CVE-2015-7504
Published: August 20, 2023
Vulnerability identifier: #VU79747
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-7504
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a malicious guest to escalate privileges on the system.
The vulnerability exists due to a boundary error in the pcnet_receive() function in hw/net/pcnet.c in QEMU. A malicious guest can use a series of packets in loopback mode to trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Affected software
QEMU
Fedora
qemu
xen
Fedora
qemu
xen
How to mitigate CVE-2015-7504
Install update from vendor's website.
qemu - update to 2.0.0-5.el7
xen - addressed in versions 4.5.2-3.fc22, 4.5.2-3.fc23
xen - addressed in versions 4.5.2-3.fc22, 4.5.2-3.fc23
External References
- https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg06342.html
- http://xenbits.xen.org/xsa/advisory-162.html
- http://www.openwall.com/lists/oss-security/2015/11/30/2
- https://security.gentoo.org/glsa/201604-03
- https://security.gentoo.org/glsa/201602-01
- http://www.securitytracker.com/id/1034268
- http://www.securityfocus.com/bid/78227
- http://www.debian.org/security/2016/dsa-3471
- http://www.debian.org/security/2016/dsa-3470
- http://www.debian.org/security/2016/dsa-3469
- http://rhn.redhat.com/errata/RHSA-2015-2696.html
- http://rhn.redhat.com/errata/RHSA-2015-2695.html
- http://rhn.redhat.com/errata/RHSA-2015-2694.html