#VU39459 Out-of-bounds read in libplist - CVE-2017-6437

Vulnerability identifier: #VU39459

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-6437

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
libplist
Other software / Other software solutions

Vendor: libimobiledevice

Description

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

The base64encode function in base64.c in libimobiledevice libplist 1.12 allows local users to cause a denial of service (out-of-bounds read) via a crafted plist file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libplist: 1.12

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External links
https://www.securityfocus.com/bid/97291
https://github.com/libimobiledevice/libplist/issues/100

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.