Vulnerability identifier: #VU36486

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-18483

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

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

Vendor: GNU

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The get_count function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31, allows remote attackers to cause a denial of service (malloc called with the result of an integer-overflowing calculation) or possibly have unspecified other impact via a crafted string, as demonstrated by c++filt.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Binutils: 2.31

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External links
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
http://www.securityfocus.com/bid/105689
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=87602
http://sourceware.org/bugzilla/show_bug.cgi?id=23767
http://usn.ubuntu.com/4326-1/
http://usn.ubuntu.com/4336-1/

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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.