CVE-2016-0702
MEDIUM severity · CVSS 5.1 · Information disclosure
5.1CVSS MEDIUM
Summary
The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which makes it easier for local users to discover RSA keys by running a crafted application on the same Intel Sandy Bridge CPU core as a victim and leveraging cache-bank conflicts, aka a "CacheBleed" attack.
Impact & exploitability
Attack vectorLocal
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)2%
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://cachebleed.info
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.htmlAdvisory