SB2017022419 - Out-of-bounds write in Debian Linux
Published: February 24, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017022419
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2017-6307)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
An issue was discovered in tnef before 1.4.13. Two OOB Writes have been identified in src/mapi_attr.c:mapi_attr_read(). These might lead to invalid read and write operations, controlled by an attacker.
Remediation
Install update from vendor's website.
References
- http://www.debian.org/security/2017/dsa-3798
- http://www.securityfocus.com/bid/96427
- https://github.com/verdammelt/tnef/blob/master/ChangeLog
- https://github.com/verdammelt/tnef/commit/1a17af1ed0c791aec44dbdc9eab91218cc1e335a
- https://security.gentoo.org/glsa/201708-02
- https://www.x41-dsec.de/lab/advisories/x41-2017-004-tnef/