CVE-2017-13720
CVSS V2 Low 3.6
CVSS V3 High 7.1
Description
In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.
Overview
- CVE ID
- CVE-2017-13720
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2017-10-11T17:29:00
- Last Modified Date
- 2017-11-13T02:29:02
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:x.org:libxfont:*:*:*:*:*:*:*:* | 1 | OR | 1.5.2 | |
| cpe:2.3:a:x.org:libxfont:2.0.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:x.org:libxfont:2.0.1:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 3.6
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.1
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2 | Vendor Advisory |
| https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608 | Patch Third Party Advisory |
| https://bugzilla.suse.com/show_bug.cgi?id=1054285 | Issue Tracking Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1500690 | Issue Tracking Third Party Advisory |
| http://www.debian.org/security/2017/dsa-3995 | |
| https://security.gentoo.org/glsa/201711-08 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-13720 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13720 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 08:11:47 | Added to TrackCVE | |||
| 2022-12-02 21:51:17 | 2017-10-11T17:29Z | 2017-10-11T17:29:00 | CVE Published Date | updated |
| 2022-12-02 21:51:18 | 2017-11-13T02:29:02 | CVE Modified Date | updated | |
| 2022-12-02 21:51:18 | Modified | Vulnerability Status | updated |