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CVE Record

CVE-2018-19637: Static temporary filename allows overwriting of files

Supportutils, before version 3.1-5.7.1, wrote data to static file /tmp/supp_log, allowing local attackers to overwrite files on systems without symlink protection

LowCVSS 2.8Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Supportutils used a predictable temporary file path, /tmp/supp_log. On SUSE systems without symlink protection, a local authenticated attacker could use that behavior to overwrite files. The business impact is limited but real: this is mainly an integrity risk on shared or multi-user Linux systems. Likely exposure is SUSE or openSUSE systems with supportutils installed below version 3.1-5.7.1, especially shared hosts where untrusted local users have accounts. Systems with effective symlink protection have reduced exposure according to the CVE description. Treat this as routine vulnerability management, not an emergency. Patch during the next normal maintenance cycle, with higher priority for shared Linux hosts or environments where local user isolation is important. Mitigation focus: Update supportutils to version 3.1-5.7.1 or later where available.; Review the openSUSE advisory for the vendor-supported package update path.; Verify operating system symlink protection is enabled on affected hosts..

Prepared

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

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-377: Exact CWE lookup

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cve · low confidence lookup

CVE-2018-19637 mapping review

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Vulnerability profileCVE Program record
Severity
Low
CVSS
2.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:L/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
2.8CVSS 3.0LowCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N1.31.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

2.8Low
CVSS 3.0 vector shape for CVE-2018-19637Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:L/AC:L/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
SUSEsupportutilsunspecifiedListed
Weakness

CWE details

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.