CVE Feed

    Dashboard / CVE / CVE-2021-31807

    CVE-2021-31807

    An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.

    Published:May 10, 2021
    Last Modified:Nov 21, 2024
    EPS:Jun 8, 2021
    EPSS Score:0.37332
    CVSS Score:6.5

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Netapp
    Product
    Cloud Manager
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Squid-cache
    Product
    Squid

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-54231 (CVSS 5.5) — A content injection vulnerability was found in the ABRT post-create event handler scripts in libreport. The ev…
    CVE-2026-54230 (CVSS 7) — A symlink following vulnerability was found in the ABRT post-create event handler scripts in libreport. Event …
    CVE-2026-35094 (CVSS 3.3) — A flaw was found in libinput. An attacker capable of deploying a Lua plugin file in specific system directorie…
    CVE-2026-35093 (CVSS 8.8) — A flaw was found in libinput. A local attacker who can place a specially crafted Lua bytecode file in certain …
    CVE-2024-3056 (CVSS 7.7) — A flaw was found in Podman. This issue may allow an attacker to create a specially crafted container that, whe…
    CVE-2024-6293 (CVSS 8.8) — Use after free in Dawn in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentially explo…
    CVE-2024-6292 (CVSS 8.8) — Use after free in Dawn in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentially explo…
    CVE-2024-6291 (CVSS 8.8) — Use after free in Swiftshader in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentiall…
    CVE-2024-6290 (CVSS 8.8) — Use after free in Dawn in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentially explo…
    CVE-2024-38277 (CVSS 5.4) — A unique key should be generated for a user's QR login key and their auto-login key, so the same key cannot be…

    References

    http://seclists.org/fulldisclosure/2023/Oct/14
    http://www.openwall.com/lists/oss-security/2023/10/11/3
    http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patch
    https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf
    https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html
    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/
    http://seclists.org/fulldisclosure/2023/Oct/14
    http://www.openwall.com/lists/oss-security/2023/10/11/3
    http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patch
    https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf
    https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html
    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/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-31807 — Fedoraproject, Netapp + (Medium 6.5) | CVE-DB