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CVE Record

CVE-2020-8019: syslog-ng: Local privilege escalation from new to root in %post

A UNIX Symbolic Link (Symlink) Following vulnerability in the packaging of syslog-ng of SUSE Linux Enterprise Debuginfo 11-SP3, SUSE Linux Enterprise Debuginfo 11-SP4, SUSE Linux Enterprise Module for Legacy Software 12, SUSE Linux Enterprise Point of Sale 11-SP3, SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Linux Enterprise Server for SAP 12-SP1; openSUSE Backports SLE-15-SP1, openSUSE Leap 15.1 allowed local attackers controlling the user news to escalate their privileges to root. This issue affects: SUSE Linux Enterprise Debuginfo 11-SP3 syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Debuginfo 11-SP4 syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Module for Legacy Software 12 syslog-ng versions prior to 3.6.4-12.8.1. SUSE Linux Enterprise Point of Sale 11-SP3 syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Server 11-SP4-LTSS syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Server for SAP 12-SP1 syslog-ng versions prior to 3.6.4-12.8.1. openSUSE Backports SLE-15-SP1 syslog-ng versions prior to 3.19.1-bp151.4.6.1. openSUSE Leap 15.1 syslog-ng versions prior to 3.19.1-lp151.3.6.1.

HighCVSS 7.7Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-8019 is a local privilege escalation flaw in SUSE/openSUSE syslog-ng packaging. A local attacker who controls the news user could exploit symlink-following behavior during package post-install processing to gain root privileges.

Executive priority

Treat as high priority for legacy SUSE/openSUSE systems because successful exploitation can turn local access into root control. It is less urgent for systems without affected versions or local attacker paths.

Technical view

The issue is CWE-61 symlink following in syslog-ng package %post handling. It affects listed SUSE Linux Enterprise and openSUSE releases before specific fixed syslog-ng package versions. CVSS 3.1 is 7.7 with local attack vector and high confidentiality and integrity impact.

Likely exposure

Exposure is mainly older SUSE Linux Enterprise 11/12 variants, SLES for SAP 12-SP1, openSUSE Leap 15.1, and openSUSE Backports SLE-15-SP1 running vulnerable syslog-ng package versions.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability requires local conditions involving control of the news user, so risk is highest on multi-user or compromised-host scenarios.

Researcher notes

Version triage is strong from the CVE data, including fixed package thresholds. Public evidence provided here does not include exploit details, active exploitation, or broader affected products beyond SUSE/openSUSE syslog-ng packaging.

Mitigation direction

  • Upgrade syslog-ng to the fixed version for the affected SUSE or openSUSE release.
  • Check SUSE guidance for release-specific package availability and support status.
  • Prioritize systems where local users or services could control the news account.
  • Reduce unnecessary local shell access on affected legacy systems until patched.

Validation and detection

  • Inventory SUSE/openSUSE systems and identify installed syslog-ng package versions.
  • Compare versions against the fixed thresholds listed in the CVE record.
  • Confirm whether affected systems expose local access to untrusted users or workloads.
  • Review SUSE Bugzilla or vendor advisories for any release-specific remediation notes.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-61: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-8019 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.7CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N2.55.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.7High
CVSS 3.1 vector shape for CVE-2020-8019Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SUSESUSE Linux Enterprise Debuginfo 11-SP3syslog-ngListed
SUSESUSE Linux Enterprise Debuginfo 11-SP4syslog-ngListed
SUSESUSE Linux Enterprise Module for Legacy Software 12syslog-ngListed
SUSESUSE Linux Enterprise Point of Sale 11-SP3syslog-ngListed
SUSESUSE Linux Enterprise Server 11-SP4-LTSSsyslog-ngListed
SUSESUSE Linux Enterprise Server for SAP 12-SP1syslog-ngListed
openSUSEopenSUSE Backports SLE-15-SP1syslog-ngListed
openSUSEopenSUSE Leap 15.1syslog-ngListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-61 · source CWE mapping

UNIX Symbolic Link (Symlink) Following

UNIX Symbolic Link (Symlink) Following represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.