PT-2019-5772 · Squid+7 · Squid+8

Jeriko One · Published 2019-11-14 · Updated 2024-06-15 · CVE-2019-12526

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Squid versions prior to 4.9

Description The issue is related to a heap-based buffer overflow in the URN response handling mechanism of Squid. This is due to insufficient size checking of copied data. Exploitation of this issue can allow a remote attacker to access confidential data, compromise data integrity, and cause a denial of service.

Recommendations For versions prior to 4.9, update to version 4.9 or later to resolve the issue. As a temporary workaround, consider restricting access to the URN response handling mechanism until a patch is available.

Exploit

Fix

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-120

Related Identifiers

ALSA-2020:4743

ALT-PU-2020-1479

ALT-PU-2020-1494

BDU:2021-01746

CESA-2020_4743

CVE-2019-12526

DLA-2028-1

DLA-2278-1

DSA-4682-1

MGASA-2019-0382

OPENSUSE-SU-2019:2540-1

OPENSUSE-SU-2019:2541-1

OPENSUSE-SU-2019_2540-1

OPENSUSE-SU-2019_2541-1

OPENSUSE-SU-2024:11403-1

RHSA-2020:4743

RHSA-2020_4743

RLSA-2020:4743

SUSE-SU-2019:2975-1

SUSE-SU-2019:3067-1

SUSE-SU-2020:0661-1

SUSE-SU-2020:14460-1

USN-4213-1

Affected Products

Alt Linux

Almalinux

Centos

Red Hat

Rocky Linux

Squid

Squid Cache

Suse

Ubuntu

References · 163

• 🔥 https://anquanke.com/post/id/190579 · Exploit
• https://osv.dev/vulnerability/MGASA-2019-0382 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:0661-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-12526 · Vendor Advisory
• https://usn.ubuntu.com/4213-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-12526 · Security Note
• https://ubuntu.com/security/CVE-2019-18679 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:14460-1 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2020-4743.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-12854 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4213-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11403-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2541-1 · Vendor Advisory