Debian LinuxOperating system · Debian
CVE-2014-8157
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 · uneditedOff-by-one error in the jpc_dec_process_sot function in JasPer 1.900.1 and earlier allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted JPEG 2000 image, which triggers a heap-based buffer overflow.
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 confidenceOff-by-one error in the jpc_dec_process_sot function in JasPer 1.900.1 and earlier allows heap-based buffer overflow when processing crafted JPEG 2000 images, potentially leading to denial of service or arbitrary code execution.
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
Debian LinuxOperating system
= 7.0
Enterprise LinuxOperating system
= 6.0= 7.0= 13.1= 13.2<= 1.900.1CVSS 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
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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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Identify if JasPer library is installedOn Debian/Ubuntu: dpkg -l | grep -i jasper. On RHEL/CentOS: rpm -qa | grep -i jasper. On SUSE: rpm -qa | grep -i jasper.Affected if No jasper package is returned, meaning the library is not installed and this CVE does not apply.
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Determine the installed JasPer versionOn Debian/Ubuntu: dpkg -l | grep -i jasper (version appears in output). On RHEL/CentOS: rpm -q jasper. On SUSE: rpm -q jasper.Affected if Version is 1.900.1 or earlier, or the package cannot be found at a higher version.
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Locate the JasPer shared library fileRun: find /usr -name 'libjasper*' 2>/dev/null. Common paths: /usr/lib/x86_64-linux-gnu/libjasper.so* or /usr/lib64/libjasper.so*.Affected if The library file exists and its version (if readable via strings or package info) is 1.900.1 or lower.
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Check if applications use JPEG 2000 processingIdentify applications that may use JasPer for JPEG 2000 decoding: look for ImageMagick with JP2 support (convert -list format | grep JP2), GDAL, or other image processing tools that depend on libjasper.Affected if JPEG 2000 support is enabled in image processing applications and they process untrusted JP2 files.
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Inspect system for processed JP2 filesSearch for JPEG 2000 (.jp2, .j2k, .jpc) files in directories where users upload or process images: find /var /home /tmp -name '*.jp2' 2>/dev/null (limited search). Check application logs for JPEG 2000 processing.Affected if JP2 files exist and are processed by JasPer-based tools, indicating potential attack surface.
The system is affected if JasPer library version 1.900.1 or earlier is installed AND applications process JPEG 2000 files using this library.
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 dataUpdate JasPer to version 1.900.2 or later. If immediate patching is not feasible, implement strict validation of JPEG 2000 files before processing or disable JPEG 2000 support in affected applications.
Fix this in Debian Linux
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 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-2014-8157 — 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-2014-8157 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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