Security readout for executives and security teams
Plain-English summary
This issue affects unrar-free 0.0.1 when _DEBUG_LOG mode is enabled. A RAR archive containing a very long filename may crash the application through a stack-based buffer overflow. The sources do not provide CVSS, confirmed downstream affected products, or a vendor fix.
Executive priority
Prioritize validation if the organization accepts RAR uploads, scans email attachments, or performs automated archive extraction. Business urgency is lower where unrar-free 0.0.1 is absent or debug logging is not enabled, but evidence gaps make inventory important.
Technical view
The reported flaw is in unrarlib.c. In _DEBUG_LOG mode, processing an overly long RAR filename may cause a stack-based buffer overflow and application crash, with unspecified other impact described as possible. The CVE record does not name CPEs, CWE, fixed versions, or affected packages beyond unrar-free 0.0.1.
Likely exposure
Exposure is most likely where unrar-free 0.0.1 is used to parse untrusted RAR archives and _DEBUG_LOG mode is enabled. The source bundle does not identify operating systems, packaged distributions, embedded products, or common deployment patterns.
Exploitation context
The CVE is not listed as KEV in the provided bundle. A public GitHub reference is cited, but the bundle does not establish active exploitation, reliable weaponization, or real-world targeting. Treat exploitation status as unconfirmed.
Researcher notes
Key unknowns are fixed version, package-level exposure, CVSS, CWE mapping, and whether the overflow can do more than crash. The only described trigger is a long filename in a RAR archive under _DEBUG_LOG mode. Avoid assuming broader impact without vendor or distribution confirmation.
Mitigation direction
- Inventory systems that use unrar-free 0.0.1.
- Check whether _DEBUG_LOG mode is enabled in builds or packages.
- Avoid processing untrusted RAR archives with affected configurations.
- Check upstream or distribution vendor guidance for fixes or safe versions.
- Isolate archive parsing services from critical workloads where possible.
Validation and detection
- Confirm the installed unrar-free version on relevant hosts.
- Review build flags or package configuration for _DEBUG_LOG mode.
- Identify services that accept or automatically unpack RAR files.
- Check logs for crashes during RAR archive handling.
- Record vendor or distribution advisories found during remediation review.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-2017-11190 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://github.com/0x09AL/my-exploits/blob/master/pocs/unrar-free/buffer-overflow/DESCRIPTIONCVE reference · x_refsource_MISC
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.