CVE-2016-5080

Description

Integer overflow in the rtxMemHeapAlloc function in asn1rt_a.lib in Objective Systems ASN1C for C/C++ before 7.0.2 allows context-dependent attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow), on a system running an application compiled by ASN1C, via crafted ASN.1 data.

9.8

CVSS

Severity: Critical

CVSS 3.0 •

CVSS 2.0 •

EPSS 40.63% Top 5%

Vendor Advisory cisco.com

Affected: n/a n/a

References

Link	Tags
https://source.android.com/security/bulletin/2017-01-01.html
http://www.securityfocus.com/archive/1/538952/100/0/threaded	mailing list
https://github.com/programa-stic/security-advisories/tree/master/ObjSys/CVE-2016-5080	third party advisory technical description
http://www.kb.cert.org/vuls/id/790839	third party advisory us government resource
https://www.ncsc.nl/dienstverlening/response-op-dreigingen-en-incidenten/beveiligingsadviezen/NCSC-2016-0650+1.00+Kwetsbaarheid+verholpen+in+ASN1C.html	third party advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securitytracker.com/id/1036386	vdb entry
http://packetstormsecurity.com/files/137970/Objective-Systems-Inc.-ASN1C-For-C-C-Heap-Memory-Corruption.html
http://seclists.org/fulldisclosure/2016/Jul/65	mailing list
http://www.securityfocus.com/bid/91836	vdb entry
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160721-asn1c	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-5080?: CVE-2016-5080 has been scored as a critical severity vulnerability.
How to fix CVE-2016-5080?: To fix CVE-2016-5080, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-5080 being actively exploited in the wild?: It is possible that CVE-2016-5080 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~41% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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