#VU16695 Integer overflow in Binutils - CVE-2018-1000876

Vulnerability identifier: #VU16695

Vulnerability risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-1000876

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: No

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

Vendor: GNU

Description

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

The vulnerability exists due to integer overflow in objdump, bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc. A local attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Binutils: 2.31 - 2.32

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External links
https://sourceware.org/bugzilla/show_bug.cgi?id=23994
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=3a551c7a1b80fca579461774860574eabfd7f18f

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.