CVE-2015-1794
First published: Sun Dec 06 2015(Updated: )
The ssl3_get_key_exchange function in ssl/s3_clnt.c in OpenSSL 1.0.2 before 1.0.2e allows remote servers to cause a denial of service (segmentation fault) via a zero p value in an anonymous Diffie-Hellman (DH) ServerKeyExchange message.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenSSL libcrypto | =1.0.2 | |
| OpenSSL libcrypto | =1.0.2a | |
| OpenSSL libcrypto | =1.0.2b | |
| OpenSSL libcrypto | =1.0.2c | |
| OpenSSL libcrypto | =1.0.2d |
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Reference Links
- http://fortiguard.com/advisory/openssl-advisory-december-2015
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
- http://openssl.org/news/secadv/20151203.txt
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-openssl
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- http://www.securitytracker.com/id/1034294
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.754583
- http://www.ubuntu.com/usn/USN-2830-1
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=ada57746b6b80beae73111fe1291bf8dd89af91c
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05398322
Frequently Asked Questions
What is the severity of CVE-2015-1794?
CVE-2015-1794 is classified as a medium severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2015-1794?
To fix CVE-2015-1794, upgrade OpenSSL to version 1.0.2e or later.
Which versions of OpenSSL are affected by CVE-2015-1794?
OpenSSL versions 1.0.2, 1.0.2a, 1.0.2b, 1.0.2c, and 1.0.2d are affected by CVE-2015-1794.
What type of attack does CVE-2015-1794 enable?
CVE-2015-1794 enables a remote denial of service attack via a segmentation fault.
Is CVE-2015-1794 a local or remote vulnerability?
CVE-2015-1794 is a remote vulnerability, allowing attackers to exploit it over the network.
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- agent/author
- agent/tags
- agent/type
- agent/description
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/openssl
- canonical/openssl libcrypto
- version/openssl libcrypto/1.0.2
- version/openssl libcrypto/1.0.2a
- version/openssl libcrypto/1.0.2b
- version/openssl libcrypto/1.0.2c
- version/openssl libcrypto/1.0.2d