Vulnerability Details CVE-2018-6551
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 62.4%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
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%3Ba=commit%3Bh=8e448310d74b283c5cd02b9ed7fb997b47bf9b22
- https://security.netapp.com/advisory/ntap-20190404-0003/
- https://sourceware.org/bugzilla/show_bug.cgi?id=22774
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=8e448310d74b283c5cd02b9ed7fb997b47bf9b22
Products affected by CVE-2018-6551
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cpe:2.3:a:gnu:glibc:2.24
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cpe:2.3:a:gnu:glibc:2.24.90
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cpe:2.3:a:gnu:glibc:2.25
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cpe:2.3:a:gnu:glibc:2.25.90
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cpe:2.3:a:gnu:glibc:2.26