#VU39624 NULL pointer dereference in libdwarf - CVE-2016-5027

Vulnerability identifier: #VU39624

Vulnerability risk: Medium

CVSSv4.0: 4.6 [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:U/U:Green]

CVE-ID: CVE-2016-5027

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libdwarf
Universal components / Libraries / Libraries used by multiple products

Vendor: David Anderson

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

dwarf_form.c in libdwarf 20160115 allows remote attackers to cause a denial of service (crash) via a crafted elf file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libdwarf: 20160115

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External links
https://www.openwall.com/lists/oss-security/2016/05/24/1
https://www.openwall.com/lists/oss-security/2016/05/25/1
https://bugzilla.redhat.com/show_bug.cgi?id=1330237

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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.