Reachable Assertion Affecting qemu-kvm-common-rhev package, versions <10:2.9.0-16.el7_4.11
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-RHEL7-QEMUKVMCOMMONRHEV-5073404
- published1 Nov 2021
- disclosed2 Jun 2017
Introduced: 2 Jun 2017
CVE-2017-7539 (opens in a new tab)How to fix?
Upgrade RHEL:7 qemu-kvm-common-rhev to version 10:2.9.0-16.el7_4.11 or higher.
This issue was patched in RHSA-2017:3470.
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.
An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.
References
- http://www.securityfocus.com/bid/99944
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7539
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=ff82911cd3f69f028f2537825c9720ff78bc3f19
- https://access.redhat.com/security/cve/CVE-2017-7539
- http://www.openwall.com/lists/oss-security/2017/07/21/4
- https://access.redhat.com/errata/RHSA-2017:3470
- https://bugzilla.redhat.com/show_bug.cgi?id=1473622
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19