CVE-2015-7504

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.71% Top 30%
Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2015-2694.html third party advisory vendor advisory
http://www.securitytracker.com/id/1034268 vdb entry third party advisory
http://www.securityfocus.com/bid/78227 vdb entry third party advisory
http://www.openwall.com/lists/oss-security/2015/11/30/2 mailing list third party advisory patch
https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg06342.html mailing list third party advisory patch
http://xenbits.xen.org/xsa/advisory-162.html patch vendor advisory mitigation
http://www.debian.org/security/2016/dsa-3469 third party advisory vendor advisory
http://www.debian.org/security/2016/dsa-3470 third party advisory vendor advisory
https://security.gentoo.org/glsa/201604-03 vdb entry third party advisory patch vendor advisory
http://www.debian.org/security/2016/dsa-3471 third party advisory vendor advisory
https://security.gentoo.org/glsa/201602-01 vdb entry third party advisory patch vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-2696.html third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2015-2695.html third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-7504?
CVE-2015-7504 has been scored as a high severity vulnerability.
How to fix CVE-2015-7504?
To fix CVE-2015-7504, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-7504 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-7504 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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