Double Free Affecting perf package, versions <0:4.9.20-10.30.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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- published27 Sept 2021
- disclosed1 Mar 2017
Introduced: 1 Mar 2017
CVE-2017-6353 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2018.03 perf to version 0:4.9.20-10.30.amzn1 or higher.
This issue was patched in ALAS-2017-814.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.
net/sctp/socket.c in the Linux kernel through 4.10.1 does not properly restrict association peel-off operations during certain wait states, which allows local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-5986.
References
- http://www.securityfocus.com/bid/96473
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfcb9f4f99f1e9a49e43398a7bfbf56927544af1
- https://github.com/torvalds/linux/commit/dfcb9f4f99f1e9a49e43398a7bfbf56927544af1
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6353
- http://www.debian.org/security/2017/dsa-3804
- http://www.openwall.com/lists/oss-security/2017/02/27/2