#VU13243 Heap-based buffer overflow in elfutils - CVE-2017-7612

Vulnerability identifier: #VU13243

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-2017-7612

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 check_sysv_hash function of elfutils due to heap-based buffer overflow when handling of Executable and Linkable Format (ELF) files by the check_sysv_hash function, as defined in the elflint.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
https://sourceware.org/bugzilla/show_bug.cgi?id=21311

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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.