CVE-2018-16869
Published: 3 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.
Notes
Author | Note |
---|---|
mdeslaur | nettle changes are too intrusive to backport to stable releases |
Priority
Status
Package | Release | Status |
---|---|---|
nettle Launchpad, Ubuntu, Debian |
bionic |
Released
(3.4.1-0ubuntu0.18.04.1)
|
cosmic |
Ignored
(end of life)
|
|
disco |
Not vulnerable
(3.4.1~rc1-1)
|
|
eoan |
Not vulnerable
(3.4.1~rc1-1)
|
|
focal |
Not vulnerable
(3.4.1~rc1-1)
|
|
groovy |
Not vulnerable
(3.4.1~rc1-1)
|
|
hirsute |
Not vulnerable
(3.4.1~rc1-1)
|
|
impish |
Not vulnerable
(3.4.1~rc1-1)
|
|
jammy |
Not vulnerable
(3.4.1~rc1-1)
|
|
kinetic |
Not vulnerable
(3.4.1~rc1-1)
|
|
trusty |
Ignored
(change too intrusive)
|
|
upstream |
Released
(3.4.1~rc1-1)
|
|
xenial |
Ignored
(change too intrusive)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.7 |
Attack vector | Physical |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Changed |
Confidentiality | High |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N |