#VU17718 Segmentation fault in elfutils - CVE-2019-7665

Vulnerability identifier: #VU17718

Vulnerability risk: Low

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

CVE-ID: CVE-2019-7665

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
elfutils
Server applications / File servers (FTP/HTTP)

Vendor: Sourceware

Description

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

The vulnerability exists in the ebl_core_note function due to improper check if the values of a NT_PLATFORM core file note is a zero-terminated string. A remote attacker can trick the victim into opening an Executable and Linkable Format (ELF) file that submits malicious input, trigger a segmentation fault that causes the affected application to crash, resulting in a DoS condition. 

Mitigation
Install updates from vendor's website.

Vulnerable software versions

elfutils: 0.175

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External links
https://sourceware.org/bugzilla/show_bug.cgi?id=24089

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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.