CVE-2018-16868

MEDIUM
5.6
CVSS Score
Published: December 3, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 01:44 AM UTC
1 product affected across 1 vendorGnutls

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Severity
MEDIUM5.6
Exploit prediction
EPSS 0.6%

Description

A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 3.6.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

x_refsource_MISCTechnical DescriptionThird Party Advisory
http://cat.eyalro.net/
Vendor Advisoryx_refsource_SUSEBroken LinkMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html
Vendor Advisoryx_refsource_SUSEBroken LinkMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00068.html
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/106080
x_refsource_CONFIRMIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868

CVSS

Attack Vector
PHYSICAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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