CVEvulnerability
CVE-2016-7908
4.4 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2016-10-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.4 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-835
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.
Affected configurations
• qemu qemu (<= 2.7.1)
• debian debian linux 8.0
Related
Weakness · CWE (1)
- CWE-835 Loop with Unreachable Exit Condition weakness
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a git.qemu.org
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/5 Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/93273 Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html Mailing List, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201611-11 Third Party Advisory
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a git.qemu.org
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/5 Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/93273 Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html Mailing List, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201611-11 Third Party Advisory