radare2 up to 3.1.3 armass.c armass_assemble out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in radare2 up to 3.1.3. This affects the function armass_assemble of the file libr/asm/arch/arm/armass.c. Executing a manipulation can lead to out-of-bounds. This vulnerability is handled as CVE-2018-20459. It is possible to launch the attack on the local host. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in radare2 up to 3.1.3 (Programming Tool Software) and classified as critical. This vulnerability affects the function armass_assemble of the file libr/asm/arch/arm/armass.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In radare2 through 3.1.3, the armass_assemble function in libr/asm/arch/arm/armass.c allows attackers to cause a denial-of-service (application crash by out-of-bounds read) by crafting an arm assembly input because a loop uses an incorrect index in armass.c and certain length validation is missing in armass64.c, a related issue to CVE-2018-20457.

The bug was discovered 12/04/2018. The weakness was released 12/25/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-20459 since 12/25/2018. 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 was handled as a non-public zero-day exploit for at least 21 days. During that time the estimated underground price was around $0-$5k. 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.

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). Entries connected to this vulnerability are available at VDB-128414, VDB-128511, VDB-128512 and VDB-128513. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

12/04/2018 🔍
12/25/2018 +21 days 🔍
12/25/2018 +0 days 🔍
12/25/2018 +0 days 🔍
12/26/2018 +1 days 🔍
01/15/2019 +20 days 🔍
01/16/2019 +1 days 🔍
06/22/2023 +1618 days 🔍

Sourcesinfo

Advisory: USN-3860-1
Status: Not defined

CVE: CVE-2018-20459 (🔍)
GCVE (CVE): GCVE-0-2018-20459
GCVE (VulDB): GCVE-100-128416
See also: 🔍

Entryinfo

Created: 12/26/2018 21:44
Updated: 06/22/2023 08:21
Changes: 12/26/2018 21:44 (71), 04/24/2020 11:22 (3), 06/22/2023 08:17 (5), 06/22/2023 08:21 (1)
Complete: 🔍
Cache ID: 216::103

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