CVE-2012-6711
CVSS V2 Medium 4.6
CVSS V3 High 7.8
Description
A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the "echo -e" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().
Overview
- CVE ID
- CVE-2012-6711
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2019-06-18T18:15:09
- Last Modified Date
- 2019-06-20T09:15:09
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:gnu:bash:*:*:*:*:*:*:*:* | 1 | OR | 4.2 | 4.3 |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.6
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1721071 | Issue Tracking Third Party Advisory |
| http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel&id=863d31ae775d56b785dc5b0105b6d251515d81d5 | Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/108824 | |
| https://support.f5.com/csp/article/K05122252 | |
| https://support.f5.com/csp/article/K05122252?utm_source=f5support&utm_medium=RSS | |
| https://usn.ubuntu.com/4180-1/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2012-6711 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6711 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:49:55 | Added to TrackCVE | |||
| 2022-12-03 22:13:51 | 2019-06-18T18:15Z | 2019-06-18T18:15:09 | CVE Published Date | updated |
| 2022-12-03 22:13:51 | 2019-06-20T09:15:09 | CVE Modified Date | updated | |
| 2022-12-03 22:13:51 | Modified | Vulnerability Status | updated |