Published:2016/02/19  Last Updated:2016/02/19

JVN#46044093
LINE for Windows and LINE for Mac OS vulnerable to denial-of-service (DoS)

Overview

LINE for Windows and LINE for Mac OS contain a denial-of-service (DoS) vulnerability.

Products Affected

  • LINE for Windows 4.3.0.724 and earlier
  • LINE for Mac OS 4.3.1 and earlier

Description

LINE for Windows and LINE for Mac OS contain a denial-of-service (DoS) vulnerability due to an issue in displaying the Timeline.

Impact

By displaying a specially crafted post in Timeline, the product may be abnormally terminated.

Solution

Update the software
Update to the latest version according to the information provided by the developer.

According to the developer, a part of this vulnerability is fixed on the server side. The developer recommends users to update the application to the latest version.

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Base Score: 3.5
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)
CVSS v2 AV:N/AC:L/Au:S/C:N/I:N/A:P
Base Score: 4.0
Access Vector(AV) Local (L) Adjacent Network (A) Network (N)
Access Complexity(AC) High (H) Medium (M) Low (L)
Authentication(Au) Multiple (M) Single (S) None (N)
Confidentiality Impact(C) None (N) Partial (P) Complete (C)
Integrity Impact(I) None (N) Partial (P) Complete (C)
Availability Impact(A) None (N) Partial (P) Complete (C)

Credit

Jun Kokatsu of KDDI Singapore Dubai Branch reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2016-1156
JVN iPedia JVNDB-2016-000029