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CVE Record

CVE-2018-25305: librsvg2-bin 2.40.13 Buffer Overflow via Malformed SVG

librsvg2-bin 2.40.13 contains a buffer overflow vulnerability that allows local attackers to cause a denial of service by processing malformed SVG files. Attackers can supply crafted SVG input to the rsvg conversion tool to trigger a segmentation fault in the cairo image compositor.

MediumCVSS 6.9Not KEV-listedUpdated
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Glexia's Takemoderate

Analyst readout for executives and security teams

Plain-English summary

This issue affects librsvg2-bin 2.40.13, specifically the rsvg conversion tooling, when it processes a malformed SVG file. A local attacker can trigger a crash, causing denial of service. The public record does not show active exploitation, but an Exploit-DB reference indicates public exploit information exists.

Executive priority

Treat as a moderate operational risk. Prioritize environments where SVG conversion handles untrusted files or supports business-critical processing pipelines.

Technical view

CVE-2018-25305 is a CWE-120 buffer overflow in librsvg2-bin 2.40.13. Crafted SVG input to the rsvg conversion tool can cause a segmentation fault in the cairo image compositor. CVSS 4.0 is 6.9 with local attack vector, low complexity, no privileges, no user interaction, and high availability impact.

Likely exposure

Exposure is most relevant on systems running librsvg2-bin 2.40.13 that process local or user-supplied SVG files through rsvg conversion workflows.

Exploitation context

Sources describe local denial of service through malformed SVG processing. KEV is false, and the provided sources do not claim active exploitation in the wild.

Researcher notes

The record is narrow: affected version 2.40.13 and local DoS are stated. No remote code execution, active exploitation, or vendor patch details are provided in the bundle.

Mitigation direction

  • Inventory systems for librsvg2-bin or RSVG version 2.40.13.
  • Check distribution or vendor guidance for fixed packages or supported upgrade paths.
  • Avoid processing untrusted SVG files with affected rsvg tooling.
  • Run SVG conversion jobs with isolation and least privilege where feasible.

Validation and detection

  • Confirm installed librsvg2-bin or RSVG package versions on relevant hosts.
  • Identify workflows that pass user-supplied SVG files to rsvg conversion tools.
  • Review crash logs for segmentation faults linked to SVG conversion.
  • Verify remediation against vendor or distribution package advisories.
Prepared
Confidence
high
Sources
4

Public sources used

Based on public source material and reviewed before publication.

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-120: 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-2018-25305 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
Medium
CVSS
6.9 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA: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
3Source 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
6.9CVSS 4.0MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——Primary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

6.9Medium
CVSS 4.0 vector shape for CVE-2018-25305Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
xenialRSVG2.40.13Listed
Weakness

CWE details

CWE-120

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

CWE-120 · source CWE mapping

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs