#VU17325 Segmentation fault in elfutils - CVE-2019-7150

Vulnerability identifier: #VU17325

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-2019-7150

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 perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient sanitization of user-supplied input by the elf64_xlatetom function as defined in the libelf/elf32_xlatetom.c source code file. A remote attacker can trick the victim into opening a specially crafted file that submits malicious input, trigger a segmentation fault and cause 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=24103
https://sourceware.org/ml/elfutils-devel/2019-q1/msg00070.html

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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.