CVE-2017-3732
Description
There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL 1.0.2 before 1.0.2k and 1.1.0 before 1.1.0d. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. For example this can occur by default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very similar to CVE-2015-3193 but must be treated as a separate problem.
Affected products
18cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:*+ 15 more
- cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.0.2i:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.1.0b:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:1.1.0c:*:*:*:*:*:*:*
- (no CPE)range: openssl-1.1.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
18- www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlnvdPatchThird Party Advisory
- github.com/openssl/openssl/commit/a59b90bf491410f1f2bc4540cc21f1980fd14c5bnvdPatch
- www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlnvdPatchThird Party Advisory
- www.securityfocus.com/bid/95814nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1037717nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:2185nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:2186nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:2187nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:2568nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:2575nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:2713nvdThird Party Advisory
- security.freebsd.org/advisories/FreeBSD-SA-17:02.openssl.ascnvdThird Party Advisory
- security.gentoo.org/glsa/201702-07nvdThird Party Advisory
- support.hpe.com/hpsc/doc/public/displaynvdThird Party Advisory
- www.openssl.org/news/secadv/20170126.txtnvdVendor Advisory
- www.tenable.com/security/tns-2017-04nvdThird Party Advisory
News mentions
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