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.
Priority
Medium
CVSS 3 base score: 5.9
Status
| Package | Release | Status |
|---|---|---|
|
gnutls26 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needs triage
|
|
|
gnutls28 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.5.19,3.6.3)
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(3.6.5-2ubuntu1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(3.5.18-1ubuntu1.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(3.4.10-4ubuntu1.5)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was needed)
|
|
|
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) |
||
Notes
| Author | Note |
|---|---|
| mdeslaur | RHEL7 update brings back SHA256 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10844
- https://eprint.iacr.org/2018/747
- https://usn.ubuntu.com/usn/usn-3999-1
- NVD
- Launchpad
- Debian