Buffer overflow in Qemu
CVE-2018-10839
Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.
Vulnerability class: Buffer Overflow
EPSS: 0.032 (86.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H.
Affected products
- Qemu
- The Qemu Project Qemu-kvm — versions <= 3.0.0
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (vendor-advisory, x_refsource_DEBIAN, Vendor Advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Patch, Vendor Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Exploit, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2018-10839?
- CVE-2018-10839 is a medium-severity vulnerability in Qemu, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2018-10-16.
- How severe is CVE-2018-10839?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-10839 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.