Home > Vulnerability Database > CVE-2021-31807

Mend.io Vulnerability Database

CVE-2021-31807

Date: June 7, 2021

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.

Language: C++

Severity Score

6.5

Related Resources (17)

Url: http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patch

Url: https://security.netapp.com/advisory/ntap-20210716-0007/

Url: https://access.redhat.com/security/cve/CVE-2021-31807

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/

Url: https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html

Url: http://seclists.org/fulldisclosure/2023/Oct/14

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/

Url: https://security.alpinelinux.org/vuln/CVE-2021-31807

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-31807

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/

Url: https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-31807

Url: https://github.com/squid-cache/squid/commit/7024fb734a59409889e53df2257b3fc817809fb4

Url: https://security-tracker.debian.org/tracker/CVE-2021-31807

Url: http://www.openwall.com/lists/oss-security/2023/10/11/3

Url: https://www.mend.io/vulnerability-database/CVE-2021-31807

Severity Score

6.5

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	SINGLE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2021-31807

Date: June 7, 2021

Language: C++

Severity Score

Related Resources (17)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

Do you need more information?