CVE-2018-14638 - Double Free

Severity

50%

Complexity

99%

Confidentiality

48%

A flaw was found in 389-ds-base before version 1.3.8.4-13. The process ns-slapd crashes in delete_passwdPolicy function when persistent search connections are terminated unexpectedly leading to remote denial of service.

A flaw was found in 389-ds-base before version 1.3.8.4-13. The process ns-slapd crashes in delete_passwdPolicy function when persistent search connections are terminated unexpectedly leading to remote denial of service.

CVSS 3.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Demo Examples

Double Free

CWE-415

Double Free

CWE-415

While contrived, this code should be exploitable on Linux distributions which do not ship with heap-chunk check summing turned on.


               
}
free(buf1R2);

Overview

First reported 6 years ago

2018-09-14 19:29:00

Last updated 5 years ago

2019-10-09 23:35:00

Affected Software

Fedora Project 389 Directory Server

Red Hat Enterprise Linux Advanced mission critical Update Support (AUS) 7.6

7.6

RedHat Enterprise Linux Desktop 7.0

7.0

RedHat Enterprise Linux Server 7.0

7.0

Red Hat Enterprise Linux Server Extended Update Support (EUS) 7.5

7.5

Red Hat Enterprise Linux Server Extended Update Support (EUS) 7.6

7.6

Red Hat Enterprise Linux Server Telecommunications Update Service (TUS) 7.6

7.6

RedHat Enterprise Linux Workstation 7.0

7.0

References

RHSA-2018:2757

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14638

Issue Tracking, Mitigation, Third Party Advisory

https://pagure.io/389-ds-base/c/78fc627accacfa4061ce48977e22301f81ea8d73

Issue Tracking, Mitigation, Third Party Advisory

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