Bug 1591911 (CVE-2018-12440)

Summary: CVE-2018-12440 netty-tcnative-boringssl-static: memory-cache side-channel attack on DSA signatures
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: cmacedo, dffrench, drusso, jmadigan, jshepherd, lgriffin, ngough, pwright, trepel
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: boringssl 7139f755b6aeadece62d576278e2fd97983229ac Doc Type: If docs needed, set a value
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Last Closed: 2021-10-21 20:04:57 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 1591913    

Description Laura Pardo 2018-06-15 18:30:43 UTC
BoringSSL through 2018-06-14 allows a memory-cache side-channel attack on DSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a DSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.


https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/