Denial of service in GNU Binutils



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-14939
CWE-ID CWE-126
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) Heap-based buffer over-read

EUVDB-ID: #VU8814

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-2017-14939

CWE-ID: CWE-126 - Buffer over-read

Exploit availability: Yes

Description

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

The vulnerability exists in the decode_line_info in dwarf2.c source code and is due to improper memory allocation. A remote attacker can send a specially crafted ELF file, trigger heap-based buffer over-read and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Binutils: 2.29

CPE2.3 External links

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=515f23e63c0074ab531bc954f84ca40c6281a724


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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