Xfce Thunar up to 1.6.14 IBus-Unikey out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Xfce Thunar up to 1.6.14. This affects an unknown function of the component IBus-Unikey Handler. This manipulation causes out-of-bounds. This vulnerability is registered as CVE-2018-18398. The attack needs to be launched locally. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Xfce Thunar up to 1.6.14 and classified as problematic. Affected by this vulnerability is an unknown code of the component IBus-Unikey Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Xfce Thunar 1.6.15, when Xfce 4.12 is used, mishandles the IBus-Unikey input method for file searches within File Manager, leading to an out-of-bounds read and SEGV. This could potentially be exploited by an arbitrary local user who creates files in /tmp before the victim uses this input method.

The bug was discovered 10/18/2018. The weakness was published 10/19/2018 (Website). It is possible to read the advisory at 0xd0ff9.wordpress.com. This vulnerability is known as CVE-2018-18398 since 10/16/2018. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.6.15 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunar 1.6.15

Timelineinfo

10/16/2018 🔍
10/18/2018 +2 days 🔍
10/19/2018 +0 days 🔍
10/19/2018 +0 days 🔍
10/20/2018 +1 days 🔍
04/05/2020 +533 days 🔍

Sourcesinfo

Advisory: 0xd0ff9.wordpress.com
Status: Not defined

CVE: CVE-2018-18398 (🔍)
GCVE (CVE): GCVE-0-2018-18398
GCVE (VulDB): GCVE-100-125815

Entryinfo

Created: 10/20/2018 09:05
Updated: 04/05/2020 18:19
Changes: 10/20/2018 09:05 (58), 04/05/2020 18:19 (1)
Complete: 🔍
Cache ID: 216::103

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