Published: 26/11/2019 Updated: 07/11/2023

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

An issue exists in Squid 2.x, 3.x, and 4.x up to and including 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.

Vulnerable Product	Search on Vulmon	Subscribe to Product
squid-cache squid 2.7
squid-cache squid
canonical ubuntu linux 16.04
canonical ubuntu linux 18.04
canonical ubuntu linux 19.04
canonical ubuntu linux 19.10
debian debian linux 8.0
fedoraproject fedora 30
fedoraproject fedora 31

Synopsis Moderate: squid:4 security, bug fix, and enhancement update Type/Severity Security Advisory: Moderate Topic An update for the squid:4 module is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this update as having a security impact of Moderate A Common Vulnerability ...

Several security issues were fixed in Squid ...

Multiple security issues were discovered in the Squid proxy caching server, which could result in the bypass of security filters, information disclosure, the execution of arbitrary code or denial of service For the stable distribution (buster), these problems have been fixed in version 46-1+deb10u2 We recommend that you upgrade your squid packag ...

An issue was discovered in Squid before 410 It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non-Squid processes (CVE-2019-12528) This vulnerability allows remote attackers to deny service on vulnerable installations of The Squid Software ...

An information disclosure issue has been found in Squid before 49, when processing HTTP Digest Authentication The nonce tokens contain the raw byte value of a pointer which sits within heap memory allocation, which reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks ...

CWE-200 https://github.com/squid-cache/squid/pull/491 http://www.squid-cache.org/Advisories/SQUID-2019_11.txt http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patch https://bugzilla.suse.com/show_bug.cgi?id=1156324 https://usn.ubuntu.com/4213-1/https://lists.debian.org/debian-lts-announce/2019/12/msg00011.html https://security.gentoo.org/glsa/202003-34 https://www.debian.org/security/2020/dsa-4682 https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/https://access.redhat.com/errata/RHSA-2020:4743 https://usn.ubuntu.com/4213-1/https://nvd.nist.gov

CVE-2019-18679

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