Race Condition Affecting qemu package, versions <1:2.10+dfsg-0ubuntu3.5
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-UBUNTU1710-QEMU-426947
- published10 Oct 2017
- disclosed10 Oct 2017
Introduced: 10 Oct 2017
CVE-2017-15038 (opens in a new tab)How to fix?
Upgrade Ubuntu:17.10 qemu to version 1:2.10+dfsg-0ubuntu3.5 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 Ubuntu.
See How to fix? for Ubuntu:17.10 relevant fixed versions and status.
Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-15038
- https://www.debian.org/security/2018/dsa-4213
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- https://security-tracker.debian.org/tracker/CVE-2017-15038
- https://lists.gnu.org/archive/html/qemu-devel/2017-10/msg00729.html
- http://www.openwall.com/lists/oss-security/2017/10/06/1
- https://usn.ubuntu.com/3575-1/