#VU16052 Memory corruption in Exiv2 - CVE-2018-9145

Vulnerability identifier: #VU16052

Vulnerability risk: Low

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:Clear]

CVE-ID: CVE-2018-9145

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Exiv2
Universal components / Libraries / Libraries used by multiple products

Vendor: GNU

Description

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

The vulnerability exists due to boundary error in the constructor with an initial buffer size in the DataBuf class in include/exiv2/types.hpp. A remote attacker can trick the victim into opening a specially crafted input, trigger a SIGABRT during an attempt at memory allocation and perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Exiv2: 0.26

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External links
https://github.com/xiaoqx/pocs/tree/master/exiv2

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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.