Vulnerability identifier: #VU16828

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20671

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 attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in load_specific_debug_section in objdump.c. A remote attacker can supply a specially crafted section size, trigger heap-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Binutils: 2.20.0 - 2.31.1

---

External links
http://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=11fa9f134fd658075c6f74499c780df045d9e9ca
http://sourceware.org/bugzilla/show_bug.cgi?id=24005

---

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.