CVE-2016-7156
CVE-2016-7156 is a medium-severity vulnerability in Qemu with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-704.
Key facts
- Severity: Medium (CVSS 3.x base score 4.4)
- CVSS v2: 2.1
- EPSS exploit prediction: 0% (32nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-704
- Affected product: Qemu
- Published:
- Last modified:
Description
The pvscsi_convert_sglist function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging an incorrect cast.
Frequently asked questions
- What is CVE-2016-7156?
- The pvscsi_convert_sglist function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging an incorrect cast.
- How severe is CVE-2016-7156?
- CVE-2016-7156 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2016-7156 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-7156?
- CVE-2016-7156 primarily affects Qemu. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-7156?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2016-7156 published?
- CVE-2016-7156 was published on 2016-12-10 and last updated on 2026-06-17.
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=49adc5d3f8c6bb75e55ebfeab109c5c37dea65e8
- http://www.openwall.com/lists/oss-security/2016/09/06/3
- http://www.openwall.com/lists/oss-security/2016/09/07/2
- http://www.securityfocus.com/bid/92774
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg00772.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01246.html
- https://security.gentoo.org/glsa/201609-01
Affected products (2)
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
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