Analyst readout for executives and security teams
Plain-English summary
This flaw affects older Yann Collet LZ4 code before r119 in a narrow 32-bit memory scenario. A malicious compressed input could corrupt memory and crash a process; other impact is possible but not defined in the provided sources.
Executive priority
Treat as targeted technical debt unless exposed decompression services use old LZ4 on affected 32-bit systems. Prioritize inventory and vendor confirmation over emergency response.
Technical view
CVE-2014-4715 is an integer overflow detection failure in LZ4 before r119 on certain 32-bit platforms allocating memory above 0x80000000. The trigger is described as a crafted Literal Run. Reported impact is denial of service through memory corruption, with unspecified other impact possible.
Likely exposure
Exposure is most likely where applications embed or link Yann Collet LZ4 before r119, run on affected 32-bit platforms, and decompress untrusted or externally supplied LZ4 data.
Exploitation context
The CVE is not listed as KEV in the provided bundle. Public references discuss the issue and exploitability, but the supplied evidence does not establish active exploitation in the wild.
Researcher notes
The affected-platform condition is specific and important. The bundle names LZ4 before r119 and a crafted Literal Run, but does not provide CVSS, CWE, complete product mapping, or confirmed exploit-in-the-wild evidence.
Mitigation direction
- Upgrade embedded or linked LZ4 code to r119 or later.
- Check vendor advisories for products bundling LZ4 rather than patching blindly.
- Prioritize systems decompressing untrusted LZ4 input on 32-bit platforms.
- Reduce exposure of services that accept arbitrary compressed data.
Validation and detection
- Inventory applications and appliances that include Yann Collet LZ4.
- Confirm the bundled LZ4 revision is r119 or later.
- Identify 32-bit deployments and memory allocation patterns near the affected range.
- Review decompression paths that process external or user-controlled LZ4 data.
- Verify regression tests cover integer overflow handling in decompression.
Public sources used
Based on public source material and reviewed before publication.
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.
CVE-2014-4715 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://code.google.com/p/lz4/source/detail?r=119CVE reference · x_refsource_CONFIRM
- 59770CVE reference · third-party-advisory, x_refsource_SECUNIA
- http://blog.securitymouse.com/2014/07/i-was-wrong-proving-lz4-exploitable.htmlCVE reference · x_refsource_MISC
- http://fastcompression.blogspot.fr/2014/07/software-vulnerabilities-how-it-works.htmlCVE reference · x_refsource_CONFIRM
- https://code.google.com/p/lz4/issues/detail?id=134CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.