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CVE-2016-7908
The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when…
Medium4.4EPSS 0.43%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.43% · top 63% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Weakness
Affected products
n/a
- affected n/a
References (8)
- [oss-security] 20161003 CVE request Qemu: net: Infinite loop in mcf_fec_do_tx (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20160922 [PATCH v2] net: mcf: limit buffer descriptor count (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201611-11 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2016:3237 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 93273 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20161003 Re: CVE request Qemu: net: Infinite loop in mcf_fec_do_tx (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .