Integer Overflow or Wraparound Affecting qemu package, versions <1:3.1+dfsg-1
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-DEBIAN13-QEMU-5693459
- published18 Oct 2018
- disclosed19 Oct 2018
Introduced: 18 Oct 2018
CVE-2018-18438 (opens in a new tab)How to fix?
Upgrade Debian:13 qemu to version 1:3.1+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
References
- https://security-tracker.debian.org/tracker/CVE-2018-18438
- https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.html
- https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02402.html
- http://www.openwall.com/lists/oss-security/2018/10/17/3
- http://www.securityfocus.com/bid/105953
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-18438