Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.1427
shibboleth-sp security update
28 April 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: shibboleth-sp
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-31826
Reference: ESB-2021.1425
Original Bulletin:
https://lists.debian.org/debian-security-announce/2021/msg00086.html
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Debian Security Advisory DSA-4905-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
April 27, 2021 https://www.debian.org/security/faq
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Package : shibboleth-sp
CVE ID : CVE-2021-31826
Debian Bug : 987608
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
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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