SB2017101617 - Use-after-free in Fedoraproject Fedora
Published: October 16, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017101617
Severity
High
Patch available
NO
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 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2015-7687)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta. A remote attackers can cause a denial of service (crash) or execute arbitrary code.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html
- http://www.openwall.com/lists/oss-security/2015/10/03/1
- http://www.securityfocus.com/bid/76975
- https://bugzilla.redhat.com/show_bug.cgi?id=1268793
- https://www.opensmtpd.org/announces/release-5.7.2.txt
- https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt