Incorrect Calculation Affecting kernel package, versions <0:4.9.43-17.39.amzn1
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-AMZN201803-KERNEL-1708082
- published27 Sept 2021
- disclosed24 Aug 2017
Introduced: 24 Aug 2017
CVE-2017-12134 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2018.03 kernel to version 0:4.9.43-17.39.amzn1 or higher.
This issue was patched in ALAS-2017-897.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.
The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.
References
- http://www.securityfocus.com/bid/100343
- https://support.citrix.com/article/CTX225941
- http://xenbits.xen.org/xsa/advisory-229.html
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12134
- http://www.debian.org/security/2017/dsa-3981
- https://security.gentoo.org/glsa/201801-14
- https://bugzilla.redhat.com/show_bug.cgi?id=1477656
- http://www.openwall.com/lists/oss-security/2017/08/15/4
- http://www.securitytracker.com/id/1039176
- https://usn.ubuntu.com/3655-1/
- https://usn.ubuntu.com/3655-2/