Denial of service in elfutils



Published: 2018-10-16
Risk Low
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2018-18310
CWE-ID CWE-20
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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elfutils
Server applications / File servers (FTP/HTTP)

Vendor Sourceware

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Segmentation fault

EUVDB-ID: #VU15371

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2018-18310

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists in the dwfl_segment_report_module.c source code file in the libdwfl library due to improper handling of Executable and Linkable Format (ELF) files. A local attacker can send an ELF file that submits malicious input, execute the eu-stack command, trigger a segmentation fault and cause the affected application to crash.

Mitigation

Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.

Vulnerable software versions

elfutils: 0.133 - 0.174

External links

http://sourceware.org/bugzilla/show_bug.cgi?id=23752


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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

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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