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CVE-2020-15049 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html	CVE
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html	CVE
https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5	CVE	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/	CVE
https://security.netapp.com/advisory/ntap-20210312-0001/	CVE
https://usn.ubuntu.com/4551-1/	CVE
https://www.debian.org/security/2020/dsa-4732	CVE
http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch	CVE	PatchVendor Advisory
http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patch	CVE	PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html	[email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html	[email protected]
https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5	[email protected]	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/	[email protected]
https://security.netapp.com/advisory/ntap-20210312-0001/	[email protected]
https://usn.ubuntu.com/4551-1/	[email protected]
https://www.debian.org/security/2020/dsa-4732	[email protected]
http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch	[email protected]	PatchVendor Advisory
http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patch	[email protected]	PatchVendor Advisory

see all 20 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-444	Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')	[email protected]

Affected Products

Product	Versions
squid-cache squid	>= 2.0, <= 2.6 >= 3.1, <= 3.5.28 >= 4.0, < 4.12 >= 5.0, < 5.0.3 2.7
CPE cpe:2.3:a:squid-cache:squid:::::::: cpe:2.3:a:squid-cache:squid:2.7:::::::* cpe:2.3:a:squid-cache:squid:2.7:stable2:::::: cpe:2.3:a:squid-cache:squid:2.7:stable3:::::: cpe:2.3:a:squid-cache:squid:2.7:stable4:::::: cpe:2.3:a:squid-cache:squid:2.7:stable5:::::: cpe:2.3:a:squid-cache:squid:2.7:stable6:::::: cpe:2.3:a:squid-cache:squid:2.7:stable7:::::: cpe:2.3:a:squid-cache:squid:2.7:stable8:::::: cpe:2.3:a:squid-cache:squid:2.7:stable9:::::: Remediation No remediation found in references.
fedoraproject fedora	31
CPE cpe:2.3:o:fedoraproject:fedora:31:::::::* Remediation No remediation found in references.

Change History

13 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Mar 12, 2021	CVE Modified	[email protected]
Oct 2, 2020	CVE Modified	[email protected]
Sep 30, 2020	CVE Modified	[email protected]
Sep 7, 2020	CVE Modified	[email protected]
Sep 5, 2020	CVE Modified	[email protected]
Jul 25, 2020	CVE Modified	[email protected]
Jul 16, 2020	Modified Analysis	[email protected]
Jul 11, 2020	CVE Modified	[email protected]
Jul 9, 2020	Initial Analysis	[email protected]