LineApplication · Linecorp

CVE-2022-29505

HIGH · 7.8 CVSS v3.1 Published 2022-04-27
Fix available
A fix is available. Upgrade to 7.8 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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 · unedited
Due to build misconfiguration in openssl dependency, LINE for Windows before 7.8 is vulnerable to DLL injection that could lead to privilege escalation.

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 confidence

LINE for Windows versions before 7.8 contain a build misconfiguration in their OpenSSL dependency that allows DLL injection attacks, potentially enabling privilege escalation. An attacker with local access could exploit this by placing a malicious DLL in a location where the application loads libraries from, achieving elevated privileges.

MitigationUpdate LINE for Windows to version 7.8 or later to obtain the patched build. Additionally, restrict file system permissions to prevent unauthorized users from writing to application directories.

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
LineApplication
Affected:< 7.8

CVSS 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
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 checks

Work through these to decide whether this CVE applies to you.

  1. Check installed LINE for Windows version
    Open Windows Settings > Apps & Features, find LINE, and note the version number. Or right-click the LINE desktop shortcut, select Properties, and check the Details tab for version info.
    Affected if Version is below 7.8 (e.g., 7.7, 7.6, etc.)
  2. Locate LINE application installation directory
    Right-click the LINE shortcut or executable, select Properties, and check the 'Open file location' path. Default is typically C:\Users\<username>\AppData\Local\LINE\ or C:\Program Files (x86)\LINE\
    Affected if Application directory path is found and version is below 7.8
  3. Verify OpenSSL DLL files exist in LINE directory
    Navigate to the LINE installation folder identified in step 2 and look for OpenSSL-related DLL files (commonly libssl.dll, libcrypto.dll, or similar OpenSSL library files).
    Affected if OpenSSL DLL files are present in the LINE application directory and version is below 7.8
  4. Check directory permissions for write access
    Right-click the LINE installation folder, select Properties > Security tab, and verify which users or groups have Write or Modify permissions. Use icacls.exe from command line for detailed ACLs.
    Affected if Non-admin users or untrusted accounts have Write or Modify permissions to the LINE application directory

User is affected if LINE for Windows version is below 7.8 AND the application directory or subdirectories are writable by users with lower privileges than the LINE process.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 7.8 or later
Fixed in 7.8
Interim mitigation

Update LINE for Windows to version 7.8 or later to obtain the patched build. Additionally, restrict file system permissions to prevent unauthorized users from writing to application directories.

Recommended fix High confidence

7.8

  1. Upgrade LINE for Windows to version 7.8 or later

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Line Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
5.0 hours of engineering $860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,376.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2022-29505 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-29505 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

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.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data