CVE-2018-16869
Published: 03 December 2018
A Bleichenbacher type side-channel based padding oracle attack was found in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run a process on the same physical core as the victim process, could use this flaw extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.
Priority
Low
CVSS 3 base score: 5.7
Status
| Package | Release | Status |
|---|---|---|
|
nettle Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4.1~rc1-1)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(3.4.1~rc1-1)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(3.4.1~rc1-1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(3.4.1~rc1-1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needed
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needed
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needed
|
Notes
| Author | Note |
|---|---|
| mdeslaur | nettle changes are too intrusive to backport to stable releases |