CVE-2018-16868
MEDIUM severity · CVSS 5.6 · CWE-203
5.6CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorPhysical
Attack complexityHigh
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://cat.eyalro.net/Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00068.htmlAdvisory
- http://www.securityfocus.com/bid/106080Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868Advisory