CVE-2018-15862
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.
Overview
- CVE ID
- CVE-2018-15862
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2018-08-25T21:29:02
- Last Modified Date
- 2019-08-06T17:15:25
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:xkbcommon:libxkbcommon:*:*:*:*:*:*:*:* | 1 | OR | 0.8.1 | |
| cpe:2.3:a:xkbcommon:xkbcommon:*:*:*:*:*:*:*:* | 1 | OR | 0.8.1 | |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html | Mailing List Patch Third Party Advisory |
| https://github.com/xkbcommon/libxkbcommon/commit/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371 | Patch Third Party Advisory |
| https://usn.ubuntu.com/3786-1/ | Third Party Advisory |
| https://security.gentoo.org/glsa/201810-05 | Third Party Advisory |
| https://usn.ubuntu.com/3786-2/ | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:2079 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-15862 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15862 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:39:28 | Added to TrackCVE | |||
| 2022-12-03 11:29:03 | 2018-08-25T21:29Z | 2018-08-25T21:29:02 | CVE Published Date | updated |
| 2022-12-03 11:29:03 | 2019-08-06T17:15:25 | CVE Modified Date | updated | |
| 2022-12-03 11:29:03 | Modified | Vulnerability Status | updated |