CVE-2016-2176: Buffer Overflow
First published: Thu May 05 2016(Updated: )
The X509_NAME_oneline function in crypto/x509/x509_obj.c in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to obtain sensitive information from process stack memory or cause a denial of service (buffer over-read) via crafted EBCDIC ASN.1 data.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenSSL libcrypto | <=1.0.1s | |
| OpenSSL libcrypto | =1.0.2 | |
| OpenSSL libcrypto | =1.0.2-beta1 | |
| OpenSSL libcrypto | =1.0.2-beta2 | |
| OpenSSL libcrypto | =1.0.2-beta3 | |
| OpenSSL libcrypto | =1.0.2a | |
| OpenSSL libcrypto | =1.0.2b | |
| OpenSSL libcrypto | =1.0.2c | |
| OpenSSL libcrypto | =1.0.2d | |
| OpenSSL libcrypto | =1.0.2e | |
| OpenSSL libcrypto | =1.0.2f | |
| OpenSSL libcrypto | =1.0.2g |
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Reference Links
- http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html
- http://packetstormsecurity.com/files/136912/Slackware-Security-Advisory-openssl-Updates.html
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160504-openssl
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/89746
- http://www.securityfocus.com/bid/91787
- http://www.securitytracker.com/id/1035721
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.542103
- https://bto.bluecoat.com/security-advisory/sa123
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git;a=commit;h=2919516136a4227d9e6d8f2fe66ef976aaf8c561
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03756en_us
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03765en_us
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40202
- https://kc.mcafee.com/corporate/index?page=content&id=SB10160
- https://security.gentoo.org/glsa/201612-16
- https://security.netapp.com/advisory/ntap-20160504-0001/
- https://support.apple.com/HT206903
- https://www.openssl.org/news/secadv/20160503.txt
- https://www.tenable.com/security/tns-2016-18
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=2919516136a4227d9e6d8f2fe66ef976aaf8c561
Frequently Asked Questions
What is the severity of CVE-2016-2176?
CVE-2016-2176 is considered a moderate severity vulnerability that can lead to information leakage or denial of service.
How do I fix CVE-2016-2176?
To mitigate CVE-2016-2176, upgrade to OpenSSL version 1.0.1t or later for the 1.0.1 branch, and to 1.0.2h or later for the 1.0.2 branch.
What types of attacks are possible with CVE-2016-2176?
An attacker can exploit CVE-2016-2176 to perform a buffer over-read, potentially revealing sensitive information from the process stack.
Which versions of OpenSSL are affected by CVE-2016-2176?
CVE-2016-2176 affects OpenSSL versions before 1.0.1t and the entire 1.0.2 branch prior to 1.0.2h.
Is CVE-2016-2176 a remote vulnerability?
Yes, CVE-2016-2176 can be exploited by remote attackers through specially crafted EBCDIC ASN.1 data.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/last-modified-date
- agent/severity
- agent/references
- agent/author
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/openssl
- canonical/openssl libcrypto
- version/openssl libcrypto/1.0.1s
- version/openssl libcrypto/1.0.2
- version/openssl libcrypto/1.0.2-beta1
- version/openssl libcrypto/1.0.2-beta2
- version/openssl libcrypto/1.0.2-beta3
- version/openssl libcrypto/1.0.2a
- version/openssl libcrypto/1.0.2b
- version/openssl libcrypto/1.0.2c
- version/openssl libcrypto/1.0.2d
- version/openssl libcrypto/1.0.2e
- version/openssl libcrypto/1.0.2f
- version/openssl libcrypto/1.0.2g