CVE-2020-8449: Input Validation
First published: Tue Feb 04 2020(Updated: )
An issue was discovered in Squid before 4.10. Due to incorrect input validation, it can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Squid-Cache Squid | <4.10 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| openSUSE Leap | =15.1 | |
| Fedoraproject Fedora | =30 | |
| Fedoraproject Fedora | =31 | |
| IBM Security Guardium | <=10.5 | |
| IBM Security Guardium | <=10.6 | |
| IBM Security Guardium | <=11.0 | |
| IBM Security Guardium | <=11.1 | |
| IBM Security Guardium | <=11.2 | |
| IBM Security Guardium | <=11.3 | |
| ubuntu/squid | <4.8-1ubuntu2.2 | 4.8-1ubuntu2.2 |
| ubuntu/squid | <4.9-2ubuntu4 | 4.9-2ubuntu4 |
| ubuntu/squid | <4.9-2ubuntu4 | 4.9-2ubuntu4 |
| ubuntu/squid | <4.9-2ubuntu4 | 4.9-2ubuntu4 |
| ubuntu/squid3 | <3.5.27-1ubuntu1.5 | 3.5.27-1ubuntu1.5 |
| ubuntu/squid3 | <3.5.12-1ubuntu7.10 | 3.5.12-1ubuntu7.10 |
| debian/squid | 4.6-1+deb10u7 4.6-1+deb10u10 4.13-10+deb11u2 4.13-10+deb11u3 5.7-2 5.7-2+deb12u1 6.6-1 6.9-1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.html
- http://www.squid-cache.org/Advisories/SQUID-2020_1.txt
- http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patch
- http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-8e657e835965c3a011375feaa0359921c5b3e2dd.patch
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_1.patch
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-b3a0719affab099c684f1cd62b79ab02816fa962.patch
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-d8e4715992d0e530871519549add5519cbac0598.patch
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G6W2IQ7QV2OGREFFUBNVZIDD3RJBDE4R/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TSU6SPANL27AGK5PCGBJOKG4LUWA555J/
- https://security.gentoo.org/glsa/202003-34
- https://security.netapp.com/advisory/ntap-20210304-0002/
- https://usn.ubuntu.com/4289-1/
- https://www.debian.org/security/2020/dsa-4682
- https://launchpad.net/bugs/cve/CVE-2020-8449
- https://exchange.xforce.ibmcloud.com/vulnerabilities/175719
- https://www.ibm.com/support/pages/node/6455281 (Advisory)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6W2IQ7QV2OGREFFUBNVZIDD3RJBDE4R/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TSU6SPANL27AGK5PCGBJOKG4LUWA555J/
- https://security-tracker.debian.org/tracker/CVE-2020-8449
- https://ubuntu.com/security/notices/USN-4289-1
- https://www.cve.org/CVERecord?id=CVE-2020-8449
- https://nvd.nist.gov/vuln/detail/CVE-2020-8449
- https://ubuntu.com/security/CVE-2020-8449
Frequently Asked Questions
What is CVE-2020-8449?
CVE-2020-8449 is a vulnerability in Squid that allows a remote attacker to obtain sensitive information.
What is the severity of CVE-2020-8449?
CVE-2020-8449 has a severity rating of 7.5 (High).
How does CVE-2020-8449 work?
CVE-2020-8449 exploits improper input validation in Squid by sending a specially-crafted HTTP request to obtain server resources information.
Which versions of Squid are affected by CVE-2020-8449?
Squid versions before 4.10 are affected by CVE-2020-8449.
How can I fix CVE-2020-8449?
To fix CVE-2020-8449, update Squid to version 4.10 or later.
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