Vulnerability Monitor

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CVE-2021-31826

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.

Published

2021-04-27T04:15:08.550

Last Modified

2024-11-21T06:06:18.140

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	shibboleth	service_provider	< 3.2.2	Yes

References

https://bugs.debian.org/987608 Mailing List, Third Party Advisory ([email protected])
https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=5a47c3b9378f4c49392dd4d15189b70956f9f2ec ([email protected])
https://issues.shibboleth.net/jira/browse/SSPCPP-927 Exploit, Patch, Vendor Advisory ([email protected])
https://shibboleth.net/community/advisories/secadv_20210426.txt Vendor Advisory ([email protected])
https://www.debian.org/security/2021/dsa-4905 Third Party Advisory ([email protected])
https://bugs.debian.org/987608 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=5a47c3b9378f4c49392dd4d15189b70956f9f2ec (af854a3a-2127-422b-91ae-364da2661108)
https://issues.shibboleth.net/jira/browse/SSPCPP-927 Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://shibboleth.net/community/advisories/secadv_20210426.txt Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2021/dsa-4905 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)