CVE-2020-8450: Buffer Overflow
First published: Tue Feb 04 2020(Updated: )
An issue was discovered in Squid before 4.10. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Squid-Cache Squid | <4.10 | |
| 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 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| 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-2020-8450
- https://exchange.xforce.ibmcloud.com/vulnerabilities/175720
- 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-2020-8450
- https://ubuntu.com/security/notices/USN-4289-1
- https://www.cve.org/CVERecord?id=CVE-2020-8450
- https://nvd.nist.gov/vuln/detail/CVE-2020-8450
- https://ubuntu.com/security/CVE-2020-8450
Frequently Asked Questions
What is CVE-2020-8450?
CVE-2020-8450 is a vulnerability in Squid before version 4.10 that allows a remote attacker to execute arbitrary code or cause a denial of service.
Which software is affected by CVE-2020-8450?
Squid versions before 4.10 are affected by CVE-2020-8450.
How severe is CVE-2020-8450?
CVE-2020-8450 has a severity rating of 9.8, which is considered critical.
How can I fix CVE-2020-8450?
To fix CVE-2020-8450, you should update Squid to version 4.10 or later.
Where can I find more information about CVE-2020-8450?
You can find more information about CVE-2020-8450 in the following references: [Link 1](http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.html), [Link 2](http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.html), [Link 3](http://www.squid-cache.org/Advisories/SQUID-2020_1.txt).
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