Libgd up to 2.2.5 gd.c gdImageClone null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Libgd up to 2.2.5 and classified as problematic. This affects the function gdImageClone of the file gd.c. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2018-14553. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Libgd up to 2.2.5 and classified as problematic. Affected by this vulnerability is the function gdImageClone of the file gd.c. 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. The summary by CVE is:

gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing atteckers to crash an application via a specific function call sequence.

The weakness was released 02/11/2020. This vulnerability is known as CVE-2018-14553 since 07/23/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236647 (Alibaba Cloud Linux 3 : 0054: gd (ALINUX3-SA-2022:0054)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (236647). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236647
Nessus Name: Alibaba Cloud Linux 3 : 0054: gd (ALINUX3-SA-2022:0054)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

07/23/2018 🔍
02/11/2020 +568 days 🔍
02/12/2020 +1 days 🔍
05/18/2025 +1922 days 🔍

Sourcesinfo

Product: github.com

Advisory: a93eac0e843148dc2d631c3ba80af17e9c8c860f
Status: Confirmed

CVE: CVE-2018-14553 (🔍)
GCVE (CVE): GCVE-0-2018-14553
GCVE (VulDB): GCVE-100-149971

Entryinfo

Created: 02/12/2020 07:23
Updated: 05/18/2025 23:53
Changes: 02/12/2020 07:23 (35), 02/12/2020 07:28 (17), 03/30/2024 09:11 (19), 03/30/2024 09:14 (3), 05/18/2025 23:53 (8)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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