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CVE-2016-0799

Description

The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842.

POC

Reference

- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html

- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html

- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html

- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

- http://www.securityfocus.com/bid/91787

- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05068681

- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05086877

- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05135617

- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888

- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168

Github

- https://github.com/ARPSyndicate/cve-scores

- https://github.com/ARPSyndicate/cvemon

- https://github.com/RClueX/Hackerone-Reports

- https://github.com/RedHatSatellite/satellite-host-cve

- https://github.com/Samaritin/OSINT

- https://github.com/chnzzh/OpenSSL-CVE-lib

- https://github.com/imhunterand/hackerone-publicy-disclosed

- https://github.com/kn0630/vulssimulator_ds

- https://github.com/xinali/articles