libming up to 0.4.8 SWF File util/decompile.c pushdup null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in libming up to 0.4.8 (Programming Tool Software) and classified as problematic. This vulnerability affects the function pushdup of the file util/decompile.c of the component SWF File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

The pushdup function in util/decompile.c in libming through 0.4.8 does not recognize the need for ActionPushDuplicate to perform a deep copy when a String is at the top of the stack, making the library vulnerable to a util/decompile.c getName NULL pointer dereference, which may allow attackers to cause a denial of service via a crafted SWF file.

The bug was discovered 03/26/2018. The weakness was published 04/01/2018 (GitHub Repository). The advisory is available at This vulnerability was named CVE-2018-9165 since 04/01/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 108904 (Debian DLA-1343-1 : ming security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277707 (Fedora Security Update for minggit5009802 (FEDORA-2019-e0d49261b9)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (108904). Similar entries are available at 112515, 114235, 114236 and 114238.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
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NVD Base Score: 6.5
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Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 108904
Nessus Name: Debian DLA-1343-1 : ming security update
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 53694
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1343-1] ming security update)
OpenVAS File: 🔍
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Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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03/26/2018 🔍
04/01/2018 +6 days 🔍
04/01/2018 +0 days 🔍
04/01/2018 +0 days 🔍
04/02/2018 +1 days 🔍
04/09/2018 +7 days 🔍
04/10/2018 +1 days 🔍
02/26/2023 +1783 days 🔍


Advisory: 121
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-9165 (🔍)
See also: 🔍


Created: 04/02/2018 11:29 AM
Updated: 02/26/2023 09:18 AM
Changes: 04/02/2018 11:29 AM (74), 01/20/2020 08:35 AM (4), 02/26/2023 09:14 AM (4), 02/26/2023 09:18 AM (1)
Complete: 🔍


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