CVE-2023-51257
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 · uneditedAn invalid memory write issue in Jasper-Software Jasper v.4.1.1 and before allows a local attacker to execute arbitrary code.
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 · moderate confidenceA memory corruption vulnerability in Jasper v4.1.1 and earlier versions allows a local attacker to write to invalid memory locations, potentially achieving arbitrary code execution. The issue stems from improper bounds checking or validation during memory write operations.
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<= 4.1.1CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 Jasper library is installedOn Linux: dpkg -l | grep jasper or rpm -qa | grep jasper. On systems with the library: ls /usr/lib/libjasper*Affected if Jasper library files are present on the system
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Determine installed Jasper versionRun 'jasper --version' or check the package version with dpkg/rpm. Also check libjasper version via: ls -la /usr/lib/libjasper.so* or pkg-config --modversion jasperAffected if Version is 4.1.1 or earlier, or the version cannot be determined (older installation)
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Identify applications using JasperSearch for binaries or applications that link to libjasper: ldd <binary> | grep jasper or find /usr -name '*.so*' -exec sh -c 'nm -D "$1" 2>/dev/null | grep -q jasper && echo "$1"' _ {} \;Affected if Any application on the system is linked against a vulnerable Jasper library version
The system is affected if Jasper library version 4.1.1 or earlier is installed, regardless of whether it is actively used by any application.
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.
dbcve · scopedUpgrade Jasper to a version beyond v4.1.1 that addresses the invalid memory write vulnerability. If no patched version is available, consider compensating controls such as restricting local access and applying the principle of least privilege.
Jasper 4.1.2 or later
- 1. Identify all applications and libraries that depend on the Jasper library in your environment
- 2. Before upgrading, review your system's dependency tree to understand what will be affected by the version change
- 3. Upgrade the Jasper library to version 4.1.2 or later, which contains the fix for the invalid memory write vulnerability
- 4. Rebuild or recompile any applications statically linked against Jasper to ensure they use the updated library
- 5. Verify the upgrade by checking the Jasper library version (e.g., using 'jasper --version' or checking the shared object)
- 6. Test critical functionality of applications that depend on Jasper to ensure the upgrade does not cause regressions
- 7. Monitor for any new security advisories related to the new Jasper version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-51257 — 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-2023-51257 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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- Version or environment caveats, and links to real fixes
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