Out-of-bounds Write 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-428212
- published27 Jun 2018
- disclosed27 Jul 2018
Introduced: 27 Jun 2018
CVE-2017-15118 (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.
A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-15118
- https://security-tracker.debian.org/tracker/CVE-2017-15118
- https://www.exploit-db.com/exploits/43194/
- https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.html
- http://www.openwall.com/lists/oss-security/2017/11/28/8
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118
- https://access.redhat.com/errata/RHSA-2018:1104
- http://www.securityfocus.com/bid/101975
- https://usn.ubuntu.com/3575-1/