Buffer overflow in Qemu
CVE-2016-6834
The net_tx_pkt_do_sw_fragmentation function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the current fragment length.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (32.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Qemu — versions 2.7.0
- Debian Debian_linux — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-6834?
- CVE-2016-6834 is a medium-severity vulnerability in Qemu, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.4/10. Published 2016-12-10.
- How severe is CVE-2016-6834?
- Medium severity. CVSS v3 base score is 4.4 out of 10.