CVE-2016-0799

HIGH

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.

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html

http://marc.info/?l=bugtraq&m=145983526810210&w=2

http://marc.info/?l=bugtraq&m=146108058503441&w=2

http://openssl.org/news/secadv/20160301.txt

http://rhn.redhat.com/errata/RHSA-2016-0722.html

http://rhn.redhat.com/errata/RHSA-2016-0996.html

http://rhn.redhat.com/errata/RHSA-2016-2073.html

http://rhn.redhat.com/errata/RHSA-2016-2957.html

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl

http://www.debian.org/security/2016/dsa-3500

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/83755

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

http://www.securitytracker.com/id/1035133

http://www.ubuntu.com/usn/USN-2914-1

https://git.openssl.org/?p=openssl.git;a=commit;h=578b956fe741bf8e84055547b1e83c28dd902c73

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us

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-c05111017

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05126404

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05131085

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-c05141441

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150736

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150800

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-c05157667

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917

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

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

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc

https://security.gentoo.org/glsa/201603-15

https://www.openssl.org/news/secadv/20160301.txt

Details

Source: MITRE

Published: 2016-03-03

Updated: 2018-01-05

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 10

Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)

Impact Score: 10

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL