Vulnerability identifier: #VU11548

Vulnerability risk: Low

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-6485

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Glibc
Universal components / Libraries / Libraries used by multiple products

Vendor: GNU

Description
The vulnerability allows a remote attacker to gain elevated privileges on the target system.

The weakness exists in the implementation of the posix_memalign in memalign functions due to integer overflow when causing these functions to return a pointer to a heap area that is too small. A remote attacker can trigger memory corruption and gain root privileges.

Mitigation
Update to version 2.27.

Vulnerable software versions

Glibc: 2.20 - 2.26

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External links
http://sourceware.org/bugzilla/show_bug.cgi?id=22343

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.