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Vulnerability Details : CVE-2019-18679

An issue was discovered in Squid 2.x, 3.x, and 4.x through 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.
Publish Date : 2019-11-26 Last Update Date : 2020-07-11
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute CodeObtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2020:4743: squid:4 security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20204743 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2019-18679

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 19.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 19.10 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
6 OS Fedoraproject Fedora 30 * * * Version Details Vulnerabilities
7 OS Fedoraproject Fedora 31 * * * Version Details Vulnerabilities
8 Application Squid-cache Squid * * * * Version Details Vulnerabilities
9 Application Squid-cache Squid 2.7 Stable7 * * Version Details Vulnerabilities
10 Application Squid-cache Squid 2.7 Stable2 * * Version Details Vulnerabilities
11 Application Squid-cache Squid 2.7 Stable8 * * Version Details Vulnerabilities
12 Application Squid-cache Squid 2.7 Stable3 * * Version Details Vulnerabilities
13 Application Squid-cache Squid 2.7 Stable9 * * Version Details Vulnerabilities
14 Application Squid-cache Squid 2.7 Stable4 * * Version Details Vulnerabilities
15 Application Squid-cache Squid 2.7 Stable5 * * Version Details Vulnerabilities
16 Application Squid-cache Squid 2.7 Stable6 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Debian Debian Linux 1
Fedoraproject Fedora 2
Squid-cache Squid 9

- References For CVE-2019-18679

https://www.debian.org/security/2020/dsa-4682
DEBIAN DSA-4682
https://security.gentoo.org/glsa/202003-34
GENTOO GLSA-202003-34
https://lists.debian.org/debian-lts-announce/2019/12/msg00011.html
MLIST [debian-lts-announce] 20191210 [SECURITY] [DLA 2028-1] squid3 security update
https://lists.fedoraproject.org/archives/list/[email protected]/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/
FEDORA FEDORA-2019-9538783033
https://usn.ubuntu.com/4213-1/
UBUNTU USN-4213-1
https://lists.fedoraproject.org/archives/list/[email protected]/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/
FEDORA FEDORA-2019-0b16cbdd0e
https://bugzilla.suse.com/show_bug.cgi?id=1156324 CONFIRM
http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patch CONFIRM
https://github.com/squid-cache/squid/pull/491
http://www.squid-cache.org/Advisories/SQUID-2019_11.txt CONFIRM
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
MLIST [debian-lts-announce] 20200710 [SECURITY] [DLA 2278-1] squid3 security update

- Metasploit Modules Related To CVE-2019-18679

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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