CVE-2023-0286
Published: 7 February 2023
There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.
Priority
Status
Package | Release | Status |
---|---|---|
edk2 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Needs triage
|
|
jammy |
Needs triage
|
|
lunar |
Needs triage
|
|
trusty |
Ignored
(end of standard support)
|
|
upstream |
Needs triage
|
|
kinetic |
Ignored
(end of life, was needs-triage)
|
|
xenial |
Needs triage
|
|
nodejs Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(uses system openssl1.0)
|
focal |
Not vulnerable
(uses system openssl)
|
|
jammy |
Needed
|
|
kinetic |
Not vulnerable
(uses system openssl)
|
|
lunar |
Not vulnerable
(uses system openssl)
|
|
trusty |
Not vulnerable
(uses system openssl)
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
|
openssl Launchpad, Ubuntu, Debian |
focal |
Released
(1.1.1f-1ubuntu2.17)
|
jammy |
Released
(3.0.2-0ubuntu1.8)
|
|
kinetic |
Released
(3.0.5-2ubuntu2.1)
|
|
lunar |
Released
(3.0.8-1ubuntu1)
|
|
trusty |
Released
(1.0.1f-1ubuntu2.27+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Released
(3.0.8,1.1.1t)
|
|
xenial |
Released
(1.0.2g-1ubuntu4.20+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
bionic |
Released
(1.1.1-1ubuntu2.1~18.04.21)
|
|
openssl1.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(1.0.2n-1ubuntu5.11)
|
focal |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.4 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H |