LiveActive security incident?Get immediate response
CVE Record

CVE-2018-17955: Static tempfile name allows overwriting of arbitrary files

In yast2-multipath before version 4.1.1 a static temporary filename allows local attackers to overwrite files on systems without symlink protection

LowCVSS 2.2Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

This is a low-severity local file-overwrite issue in SUSE yast2-multipath before 4.1.1. It requires a local attacker, prior low privileges, user interaction, high attack complexity, and missing symlink protection. Business urgency is limited unless affected SUSE hosts allow untrusted local users.

Executive priority

Treat this as routine patch hygiene, not an emergency. Prioritize if affected hosts are multi-user, shared, or exposed to untrusted local accounts.

Technical view

yast2-multipath used a static temporary filename, classified as CWE-377. On systems without symlink protection, a local attacker could potentially cause limited integrity impact by overwriting files. The CVSS v3.0 score is 2.2 with local access, high complexity, low privileges, and required user interaction.

Likely exposure

Exposure appears limited to SUSE deployments running yast2-multipath versions before 4.1.1, especially systems without symlink protection and with local user access. The provided sources do not identify broader affected products or remote exposure.

Exploitation context

The CVE is not listed as CISA KEV in the provided bundle, and no supplied source claims active exploitation. Exploitation would require local access, high complexity, user interaction, and a system missing symlink protection.

Researcher notes

Evidence is narrow: the bundle identifies yast2-multipath before 4.1.1, CWE-377, and a local overwrite condition tied to absent symlink protection. It does not provide exploit details, affected SUSE product matrices, or live exploitation claims.

Mitigation direction

  • Upgrade yast2-multipath to version 4.1.1 or later where supported.
  • Check SUSE guidance for affected package updates and supported hardening settings.
  • Verify symlink protection is enabled on systems running affected packages.
  • Limit local shell access on affected systems until remediation is complete.

Validation and detection

  • Inventory SUSE systems with yast2-multipath installed.
  • Confirm installed yast2-multipath versions are 4.1.1 or later.
  • Identify hosts where untrusted local users can access YaST multipath workflows.
  • Review file integrity alerts for unexpected privileged file changes.
Prepared
Confidence
medium
Sources
3

Public sources used

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-377: 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
cve · low confidence lookup

CVE-2018-17955 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
Low
CVSS
2.2 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/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
2.2CVSS 3.0LowCVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N0.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

2.2Low
CVSS 3.0 vector shape for CVE-2018-17955Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/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
SUSEyast2-multipathunspecifiedListed
Weakness

CWE details

CWE-377

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

CWE-377 · source CWE mapping

Insecure Temporary File

Insecure Temporary File represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs