Critical severity · published Feb 2, 2018
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…
9.8
CVSS
2.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GL
Glibc · Gnu
2.24 through 2.26 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6551
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6551
security.netapp.com
https://security.netapp.com/advisory/ntap-20190404-0003/
Issue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=22774
sourceware.org
https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=8e448310d74b283c5cd02b9ed7fb997b47bf9b22
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