Out-of-bounds Write Affecting glibc-static package, versions <0:2.26-27.amzn2.0.4
Threat Intelligence
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Test your applications- Snyk IDSNYK-AMZN2-GLIBCSTATIC-1661798
- published27 Sept 2021
- disclosed2 Feb 2018
Introduced: 2 Feb 2018
CVE-2018-6551 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2 glibc-static to version 0:2.26-27.amzn2.0.4 or higher.
This issue was patched in ALAS2-2018-992.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc-static package and not the glibc-static package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
The malloc implementation in the GNU C Library (aka glibc or libc6), from version 2.24 to 2.26 on powerpc, and only in version 2.26 on i386, did not properly handle malloc calls with arguments close to SIZE_MAX and could return a pointer to a heap region that is smaller than requested, eventually leading to heap corruption.
References
- https://security.netapp.com/advisory/ntap-20190404-0003/
- https://sourceware.org/bugzilla/show_bug.cgi?id=22774
- https://sourceware.org/git/?p=glibc.git;a=commit;h=8e448310d74b283c5cd02b9ed7fb997b47bf9b22
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6551
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=8e448310d74b283c5cd02b9ed7fb997b47bf9b22