Upstream information

CVE-2019-12522 at MITRE

Description

An issue was discovered in Squid through 4.7. When Squid is run as root, it spawns its child processes as a lesser user, by default the user nobody. This is done via the leave_suid call. leave_suid leaves the Saved UID as 0. This makes it trivial for an attacker who has compromised the child process to escalate their privileges back to root.

SUSE information

Overall state of this security issue: Analysis

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 10
Vector AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.8 7
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector Network Local
Access Complexity Low High
Privileges Required None Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1170454 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise 15-SP1 Module for Server Applications squid Analysis
SUSE Linux Enterprise 15-SP2 Module for Server Applications squid Analysis
SUSE Linux Enterprise High Performance Computing 12 SP4 squid Analysis
SUSE Linux Enterprise High Performance Computing 12 SP5 squid Analysis
SUSE Linux Enterprise High Performance Computing 15 LTSS squid Analysis
SUSE Linux Enterprise Server 11 SP4 LTSS squid Analysis
SUSE Linux Enterprise Server 11 SP4 LTSS squid3 Analysis
SUSE Linux Enterprise Server 12 SP2 BCL squid Analysis
SUSE Linux Enterprise Server 12 SP2 LTSS squid Analysis
SUSE Linux Enterprise Server 12 SP3 BCL squid Analysis
SUSE Linux Enterprise Server 12 SP3 LTSS squid Analysis
SUSE Linux Enterprise Server 12 SP4 squid Analysis
SUSE Linux Enterprise Server 12 SP4 LTSS squid Analysis
SUSE Linux Enterprise Server 12 SP5 squid Analysis
SUSE Linux Enterprise Server 15 LTSS squid Analysis
SUSE Linux Enterprise Server ESPOS 15 squid Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP2 squid Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP3 squid Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP4 squid Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP5 squid Analysis