CVE-2017-9287 - Double Free

Severity

40%

Complexity

80%

Confidentiality

48%

servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.

servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.

CVSS 3.0 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/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 7 years ago

2017-05-29 16:29:00

Last updated 7 years ago

2018-01-05 02:31:00

Affected Software

OpenLDAP OpenLDAP

References

DSA-3868

http://www.openldap.org/its/?findid=8655

Exploit, Patch, Vendor Advisory

98736

Third Party Advisory, VDB Entry

1038591

RHSA-2017:1852

https://bugs.debian.org/863563

Issue Tracking, Patch, Third Party Advisory

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