Stack-based Buffer Overflow Affecting qemu-kvm-common-rhev package, versions <10:2.10.0-21.el7
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL7-QEMUKVMCOMMONRHEV-5075371
- published26 Jul 2021
- disclosed28 Nov 2017
Introduced: 28 Nov 2017
CVE-2017-15118 (opens in a new tab)How to fix?
Upgrade RHEL:7 qemu-kvm-common-rhev to version 10:2.10.0-21.el7 or higher.
This issue was patched in RHSA-2018:1113.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-kvm-common-rhev package and not the qemu-kvm-common-rhev package as distributed by RHEL.
See How to fix? for RHEL:7 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://www.securityfocus.com/bid/101975
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118
- https://access.redhat.com/security/cve/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://usn.ubuntu.com/3575-1/