#VU17268 Out-of-bounds read in libical - CVE-2016-5825

Vulnerability identifier: #VU17268

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-5825

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

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

Vendor: libical

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary error in the icalparser_parse_string function. A remote attacker can create a specially crafted ics file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libical: 0.47 - 1.0.0

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External links
https://www.openwall.com/lists/oss-security/2016/06/25/4
https://bugzilla.mozilla.org/show_bug.cgi?id=1280832

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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.