Integer Overflow or Wraparound Affecting qemu-kvm package, versions <2:0.12.1.2-2.506.el6_10.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL6-QEMUKVM-1522708
- published26 Jul 2021
- disclosed26 Sept 2018
Introduced: 26 Sep 2018
CVE-2018-10839 (opens in a new tab)How to fix?
Upgrade RHEL:6 qemu-kvm to version 2:0.12.1.2-2.506.el6_10.5 or higher.
This issue was patched in RHSA-2019:2892.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-kvm package and not the qemu-kvm package as distributed by RHEL.
See How to fix? for RHEL:6 relevant fixed versions and status.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10839
- https://access.redhat.com/security/cve/CVE-2018-10839
- https://www.debian.org/security/2018/dsa-4338
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.html
- https://www.openwall.com/lists/oss-security/2018/10/08/1
- https://access.redhat.com/errata/RHSA-2019:2892
- https://usn.ubuntu.com/3826-1/
- https://bugzilla.redhat.com/show_bug.cgi?id=1581013