CVE-2021-31826
Publication date 27 April 2021
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
Shibboleth Service Provider 3.x before 3.2.2 is prone to a NULL pointer dereference flaw involving the session recovery feature. The flaw is exploitable (for a daemon crash) on systems not using this feature if a crafted cookie is supplied.
Status
Package | Ubuntu Release | Status |
---|---|---|
shibboleth-sp | 22.04 LTS jammy |
Not affected
|
20.04 LTS focal |
Fixed 3.0.4+dfsg1-1ubuntu0.2
|
|
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release |
Notes
Severity score breakdown
Parameter | Value |
---|---|
Base score |
|
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Other references
- https://shibboleth.net/community/advisories/secadv_20210426.txt
- https://issues.shibboleth.net/jira/browse/SSPCPP-927
- https://git.shibboleth.net/view/?p=cpp-sp.git;a=commit;h=5a47c3b9378f4c49392dd4d15189b70956f9f2ec
- https://bugs.debian.org/987608
- https://www.debian.org/security/2021/dsa-4905
- https://www.cve.org/CVERecord?id=CVE-2021-31826