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MEDIUM · 4.7

CVE-2018-12440

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 eith...

Vulnerability Description

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.

CVSS Score

4.7

MEDIUM

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
GoogleBoringssl<= 2018-06-14

Related Weaknesses (CWE)

CWE-200

References

FAQ

What is CVE-2018-12440?

CVE-2018-12440 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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 eith...

How severe is CVE-2018-12440?

CVE-2018-12440 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-12440?

Check the references section above for vendor advisories and patch information. Affected products include: Google Boringssl.