CVE-2018-10844
Published: 22 August 2018
It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets.
Notes
Author | Note |
---|---|
mdeslaur | RHEL7 update brings back SHA256 |
Priority
Status
Package | Release | Status |
---|---|---|
gnutls28 Launchpad, Ubuntu, Debian |
disco |
Not vulnerable
(3.6.5-2ubuntu1)
|
eoan |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
focal |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
hirsute |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
jammy |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
kinetic |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
lunar |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
bionic |
Released
(3.5.18-1ubuntu1.1)
|
|
cosmic |
Not vulnerable
(3.6.4-2ubuntu1)
|
|
groovy |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
impish |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
trusty |
Does not exist
(trusty was needed)
|
|
upstream |
Released
(3.5.19,3.6.3)
|
|
xenial |
Released
(3.4.10-4ubuntu1.5)
|
|
Patches: upstream: https://gitlab.com/gnutls/gnutls/merge_requests/657 upstream: https://gitlab.com/gnutls/gnutls/commit/e14d85eb8b1987d86f7b1d101a0e7795675d20d4 (3.5) upstream: https://gitlab.com/gnutls/gnutls/commit/c2e094acd68f7159025b2e2556d6fb4427b41dd7 (3.5) upstream: https://gitlab.com/gnutls/gnutls/commit/62a39773e9d0c4a686a3d8d2b6cca32f82c26cd7 (3.5) upstream: https://gitlab.com/gnutls/gnutls/commit/c433cdf92349afae66c703bdacedf987f423605e (3.5) upstream: https://gitlab.com/gnutls/gnutls/commit/9fdd24d53c84cc68dac1be28f8b1436e424ce1f1 (3.5) |
||
gnutls26 Launchpad, Ubuntu, Debian |
hirsute |
Does not exist
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
impish |
Does not exist
|
|
trusty |
Needed
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |