VulnerabilityModified
CVE-2020-8449
An issue was discovered in Squid before 4.10.
HIGH 7.5EPSS 8.31%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 8.31% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-668
- Affected
- squid-cache/squid · debian/debian linux · canonical/ubuntu linux · opensuse/leap · fedoraproject/fedora
- Source
- cve@mitre.org
EPSS 8.3% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.htmlMailing List, Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2020_1.txtPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-8e657e835965c3a011375feaa0359921c5b3e2dd.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_1.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-b3a0719affab099c684f1cd62b79ab02816fa962.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-d8e4715992d0e530871519549add5519cbac0598.patchPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party 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.gentoo.org/glsa/202003-34Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210304-0002/Third Party Advisory
- https://usn.ubuntu.com/4289-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4682Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.htmlMailing List, Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2020_1.txtPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-8e657e835965c3a011375feaa0359921c5b3e2dd.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_1.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-b3a0719affab099c684f1cd62b79ab02816fa962.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-d8e4715992d0e530871519549add5519cbac0598.patchPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlMailing List, Third Party 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.gentoo.org/glsa/202003-34Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210304-0002/Third Party Advisory
- https://usn.ubuntu.com/4289-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4682Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.