8.8

CVE-2019-12527

An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Squid-cache ≫ Squid Version >= 4.0.23 <= 4.7
Fedoraproject ≫ Fedora Version 29
Debian ≫ Debian Linux Version 10.0
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 19.04
Redhat ≫ Enterprise Linux Version 8.0
Redhat ≫ Enterprise Linux Eus Version 8.1
Redhat ≫ Enterprise Linux Eus Version 8.2
Redhat ≫ Enterprise Linux Eus Version 8.4
Redhat ≫ Enterprise Linux Eus Version 8.6
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 49.04% 0.987
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NIST 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html
Broken Link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/
https://seclists.org/bugtraq/2019/Aug/42
Third Party Advisory
Mailing List
https://www.debian.org/security/2019/dsa-4507
Third Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/
Vendor Advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch
Patch
Vendor Advisory
https://github.com/squid-cache/squid/commits/v4
Patch
Third Party Advisory
https://usn.ubuntu.com/4065-1/
Third Party Advisory
http://www.securityfocus.com/bid/109143
Third Party Advisory
Broken Link
VDB Entry
https://access.redhat.com/errata/RHSA-2019:2593
Third Party Advisory