#VU16338 Heap-based buffer overflow in Binutils - CVE-2018-19931

Vulnerability identifier: #VU16338

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-19931

CWE-ID: CWE-122

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 cause DoS condition on the target system.

The vulnerability exists due to heap-based buffer overflow in the bfd_elf32_swap_phdr_in function, as defined in the elfcode.h source code file when handling malicious input. A local attacker can supply a specially crafted file that may trigger memory corruption and cause the service to crash.

Mitigation
Update to version 2.31.1.

Vulnerable software versions

Binutils: 2.20.0 - 2.31

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External links
https://sourceware.org/bugzilla/show_bug.cgi?id=23942

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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.