Padding Oracle Attack in GnuTLS Affects Multiple Platforms
CVE-2018-16868

4.7MEDIUM

Key Information:

Vendor

[unknown]

Status
Gnutls
Vendor
CVE Published:
3 December 2018

What is CVE-2018-16868?

A vulnerability in GnuTLS facilitates a Bleichenbacher type side-channel padding oracle attack during the RSA decryption verification process of PKCS#1 v1.5 data. An attacker, capable of executing processes on the same physical core as the vulnerable application, might exploit this flaw to recover plaintext data. Moreover, this issue poses a risk of downgrading any TLS connections to a server utilizing vulnerable versions of GnuTLS.

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Affected Version(s)

gnutls

References

http://www.securityfocus.com/bid/106080
vdb-entryx_refsource_BID
http://lists.opensuse.org/opensuse-security-announce/2019...
vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2019...
vendor-advisoryx_refsource_SUSE

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Physical
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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