VDB-128512 · CVE-2018-20545 · Nessus 121212

libcaca 0.99.beta19 common-image.c load_image integer overflow

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7.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in libcaca 0.99.beta19. It has been declared as critical. Affected is the function load_image of the file common-image.c. Executing a manipulation can lead to integer overflow. This vulnerability is tracked as CVE-2018-20545. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in libcaca 0.99.beta19. This vulnerability affects the function load_image of the file common-image.c. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

There is an illegal WRITE memory access at common-image.c (function load_image) in libcaca 0.99.beta19 for 4bpp data.

The bug was discovered 12/28/2018. The weakness was disclosed 12/28/2018 (Website). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2018-20545 since 12/27/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 121212 (Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : libcaca vulnerabilities (USN-3860-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197344 (Ubuntu Security Notification for Libcaca Vulnerabilities (USN-3860-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (121212). The entries VDB-128416, VDB-128511, VDB-128513 and VDB-128514 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

libcaca

Version

0.99.beta19

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: 121212
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : libcaca vulnerabilities (USN-3860-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

12/27/2018 🔍
12/28/2018 +1 days 🔍
12/28/2018 +0 days 🔍
12/28/2018 +0 days 🔍
12/29/2018 +1 days 🔍
01/15/2019 +17 days 🔍
01/16/2019 +1 days 🔍
06/22/2023 +1618 days 🔍

Sourcesinfo

Advisory: 3e52dabe3e64dc50f4422effe364a1457a8a8592
Status: Confirmed

CVE: CVE-2018-20545 (🔍)
GCVE (CVE): GCVE-0-2018-20545
GCVE (VulDB): GCVE-100-128512
See also: 🔍

Entryinfo

Created: 12/29/2018 17:38
Updated: 06/22/2023 12:17
Changes: 12/29/2018 17:38 (71), 04/25/2020 06:52 (3), 06/22/2023 12:10 (5), 06/22/2023 12:17 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.