Debian Security Advisory
DSA-4905-1 shibboleth-sp -- security update
- Date Reported:
- 27 Apr 2021
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 987608.
In Mitre's CVE dictionary: CVE-2021-31826.
- More information:
It was discovered that the Shibboleth Service Provider is prone to a NULL pointer dereference flaw in the cookie-based session recovery feature. A remote, unauthenticated attacker can take advantage of this flaw to cause a denial of service (crash in the shibd daemon/service).
For additional information please refer to the upstream advisory at https://shibboleth.net/community/advisories/secadv_20210426.txt
For the stable distribution (buster), this problem has been fixed in version 3.0.4+dfsg1-1+deb10u2.
We recommend that you upgrade your shibboleth-sp packages.
For the detailed security status of shibboleth-sp please refer to its security tracker page at: https://security-tracker.debian.org/tracker/shibboleth-sp