CVE-2023-0286
Publication date 7 February 2023
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
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.
Status
Package | Ubuntu Release | Status |
---|---|---|
edk2 | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Needs evaluation
|
|
20.04 LTS focal |
Needs evaluation
|
|
18.04 LTS bionic |
Needs evaluation
|
|
16.04 LTS xenial |
Needs evaluation
|
|
14.04 LTS trusty | Ignored end of standard support | |
nodejs | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Fixed 12.22.9~dfsg-1ubuntu3.3
|
|
20.04 LTS focal |
Not affected
|
|
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty |
Not affected
|
|
openssl | 24.04 LTS noble |
Fixed 3.0.8-1ubuntu1
|
22.04 LTS jammy |
Fixed 3.0.2-0ubuntu1.8
|
|
20.04 LTS focal |
Fixed 1.1.1f-1ubuntu2.17
|
|
18.04 LTS bionic |
Fixed 1.1.1-1ubuntu2.1~18.04.21
|
|
16.04 LTS xenial |
Fixed 1.0.2g-1ubuntu4.20+esm6
|
|
14.04 LTS trusty |
Fixed 1.0.1f-1ubuntu2.27+esm6
|
|
openssl1.0 | ||
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic |
Fixed 1.0.2n-1ubuntu5.11
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release |
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Get Ubuntu ProSeverity score breakdown
Parameter | Value |
---|---|
Base score | 7.4 · High |
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 |
References
Related Ubuntu Security Notices (USN)
- USN-5844-1
- OpenSSL vulnerabilities
- 7 February 2023
- USN-5845-1
- OpenSSL vulnerabilities
- 7 February 2023
- USN-5845-2
- OpenSSL vulnerabilities
- 7 February 2023
- USN-6564-1
- Node.js vulnerabilities
- 3 January 2024