Denial of service in GNU Binutils



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-7642
CWE-ID CWE-476
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Binutils
Universal components / Libraries / Libraries used by multiple products

Vendor GNU

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU11310

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-7642

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to improper bounds checking when using the swap_std_reloc_in function, as defined in the aoutx.h source code file in the Binary File Descriptor (BFD) library. A remote attacker can submit a specially crafted ELF file, trigger NULL pointer dereference and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Binutils: 2.30

CPE2.3 External links

https://sourceware.org/bugzilla/show_bug.cgi?id=22887


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. However, proof of concept for this vulnerability is available.



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