#VU13242 Memory corruption in elfutils - CVE-2017-7613

Vulnerability identifier: #VU13242

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-2017-7613

CWE-ID: CWE-119

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 elflint.c source code of elfutils due to boundary error when sanitization checks of the number of eshnum sections and ephnum segments. 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=21312

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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.