PRIOn knowledge basePRION:CVE-2020-15049Design/Logic Flaw
An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ “-” or an uncommon shell whitespace character prefix to the length field-value.
References
lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html
www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch
www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patch
github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5
lists.debian.org/debian-lts-announce/2020/10/msg00005.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/
security.netapp.com/advisory/ntap-20210312-0001/
usn.ubuntu.com/4551-1/
www.debian.org/security/2020/dsa-4732
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