CVE-2015-7557
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe _rsvg_node_poly_build_path function in rsvg-shapes.c in librsvg before 2.40.7 allows context-dependent attackers to cause a denial of service (out-of-bounds heap read) via an odd number of elements in a coordinate pair in an SVG document.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceHeap out-of-bounds read vulnerability in librsvg's _rsvg_node_poly_build_path function when parsing SVG path data containing malformed coordinate pairs with an odd number of elements, allowing attackers to trigger denial of service via crafted SVG documents.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 2.40.6CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check if librsvg is installedRun 'pkg-config --modversion librsvg-2.0' on Linux systems, or check package manager output (dpkg -l | grep librsvg, rpm -q librsvg, brew list librsvg)Affected if The command returns a version number, meaning librsvg is present
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Determine installed librsvg versionUse pkg-config: 'pkg-config --modversion librsvg-2.0' or check via package manager: 'dpkg -l librsvg2-dev' (Debian), 'rpm -q librsvg2-devel' (RHEL/Fedora)Affected if Version returned is 2.40.6 or earlier
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Identify applications using librsvgSearch for binaries that link to librsvg using 'ldd' on suspected binaries or check for SVG processing code: 'find /usr -name "*.so" -path "*librsvg*"' and examine what applications load itAffected if Applications that process SVG files are present and linked against librsvg
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Verify vulnerable code path is reachableCheck if any application or service processes untrusted SVG files using librsvg (review application logs, configuration, or code that calls rsvg_handle_new_from_file or similar functions)Affected if SVG files from untrusted sources are being parsed by librsvg
A user is affected if librsvg version 2.40.6 or earlier is installed and actively parsing SVG documents, particularly from untrusted sources
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade librsvg to version 2.40.7 or later to patch the vulnerability; if immediate upgrade is not feasible, isolate SVG parsing in sandboxed environments to limit exposure.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-7557 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2015-7557 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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