CVE-2015-5745
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Description
The CVE Program describes this issue as:
Buffer overflow in the send_control_msg function in hw/char/virtio-serial-bus.c in QEMU before 2.4.0 allows guest users to cause a denial of service (QEMU process crash) via a crafted virtio control message.
Statement
This issue does not affect the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5.
This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7.
This issue affects the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.
This issue affects the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.
This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Additional information
- Bugzilla 1251157: kernel: qemu buffer overflow in virtio-serial
- CWE-122: Heap-based Buffer Overflow
- FAQ: Frequently asked questions about CVE-2015-5745
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
Red Hat | NVD | |
---|---|---|
CVSS v2 Base Score | 3.2 | 4 |
Attack Vector | Adjacent Network | Network |
Access Complexity | High | Low |
Authentication | None | Single |
Confidentiality Impact | None | None |
Integrity Impact | Partial | None |
Availability Impact | Partial | Partial |
CVSS v2 Vector
Red Hat: AV:A/AC:H/Au:N/C:N/I:P/A:P
NVD: AV:N/AC:L/Au:S/C:N/I:N/A:P
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
What can I do if my product is listed as "Will not fix"?
What can I do if my product is listed as "Fix deferred"?
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
My product is listed as "Out of Support Scope". What does this mean?
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