PRIOn knowledge basePRION:CVE-2020-11945Design/Logic Flaw
An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).
References
lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html
master.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch
www.openwall.com/lists/oss-security/2020/04/23/2
www.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch
bugzilla.suse.com/show_bug.cgi?id=1170313
github.com/squid-cache/squid/commit/eeebf0f37a72a2de08348e85ae34b02c34e9a811
github.com/squid-cache/squid/pull/585
lists.debian.org/debian-lts-announce/2020/07/msg00009.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4FWQRYZJPHAZBLXJ56FPCHJN5X2FP3VA/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H4MWXEZAJSOGRJSS2JCJK4WBSND4IV46/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RV2VZWFJNO3B56IVN56HHKJASG5DYUIX/
security.gentoo.org/glsa/202005-05
security.netapp.com/advisory/ntap-20210304-0004/
usn.ubuntu.com/4356-1/
www.debian.org/security/2020/dsa-4682
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