Vulnerability identifier: #VU13240

Vulnerability risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2017-7607

CWE-ID: CWE-122

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 handle_gnu_hash function of elfutils due to heap-based buffer overflow when handling of Executable and Linkable Format (ELF) files by the handle_gnu_hash function, as defined in the readelf.c source code file. A remote attacker can trick the victim into opening an Executable and Linkable Format (ELF) file that submits malicious input, trigger memory corruption and cause the application to crash.

Mitigation
Update to version 0.169.

Vulnerable software versions

elfutils: 0.133 - 0.168

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External links
http://sourceware.org/bugzilla/show_bug.cgi?id=21299

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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.