VulnerabilityModified
CVE-2021-31808
Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy).
MEDIUM 6.5EPSS 5.34%
Does this matter?
Lower severity and a low EPSS score (5.34%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.34% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- squid-cache/squid · debian/debian linux · netapp/cloud manager · fedoraproject/fedora
- Source
- cve@mitre.org
References
- http://seclists.org/fulldisclosure/2023/Oct/14Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/10/11/3Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patchExploit, Patch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xfPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00014.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/
- https://security.netapp.com/advisory/ntap-20210716-0007/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4924Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/14Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/10/11/3Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patchExploit, Patch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xfPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00014.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/
- https://security.netapp.com/advisory/ntap-20210716-0007/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4924Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.