CVE-2020-29363

p11-kit: out-of-bounds write in p11_rpc_buffer_get_byte_array_value function in rpc-message.c

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.

Se detectó un problema en p11-kit versiones 0.23.6 hasta 0.23.21. Se ha detectado un desbordamiento de búfer en la región heap de la memoria en el protocolo RPC usado por los comandos remotos del servidor p11-kit y la biblioteca cliente. Cuando la entidad remota proporciona una matriz de bytes serializados en un CK_ATTRIBUTE, es posible que la entidad receptora no asigne una longitud suficiente para que el búfer almacene el valor deserializado

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-01 CVE Published
2020-11-27 CVE Reserved
2024-08-04 CVE Updated
2024-10-20 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (6)

URL	Tag	Source
https://github.com/p11-glue/p11-kit/releases	Release Notes
https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5j67-fw89-fp6x	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2022.html	2022-05-12

URL	Date	SRC
https://www.debian.org/security/2021/dsa-4822	2022-05-12
https://access.redhat.com/security/cve/CVE-2020-29363	2021-05-18
https://bugzilla.redhat.com/show_bug.cgi?id=1903588	2021-05-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
P11-kit Project Search vendor "P11-kit Project"		P11-kit Search vendor "P11-kit Project" for product "P11-kit"				>= 0.23.6 < 0.23.22 Search vendor "P11-kit Project" for product "P11-kit" and version " >= 0.23.6 < 0.23.22"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy"				1.14.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "1.14.0"		-		Affected