CVE-2019-5010

python: NULL pointer dereference using a specially crafted X509 certificate

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 exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.

Se presenta una vulnerabilidad de denegación de servicio explotable en el analizador de certificados X509 de Python.org Python versión 2.7.11 / 3.6.6. Un certificado X509 especialmente diseñado puede causar una desreferencia del puntero NULL, resultando en una denegación de servicio. Un atacante puede iniciar o aceptar conexiones TLS usando certificados diseñados para activar esta vulnerabilidad.

A null pointer dereference vulnerability was found in the certificate parsing code in Python. This causes a denial of service to applications when parsing specially crafted certificates. This vulnerability is unlikely to be triggered if application enables SSL/TLS certificate validation and accepts certificates only from trusted root certificate authorities.

*Credits: N/A

CVSS Scores

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

High

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

2019-01-04 CVE Reserved
2019-03-04 CVE Published
2019-11-06 First Exploit
2024-08-04 CVE Updated
2024-10-24 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (11)

URL	Tag	Source
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html	Mailing List
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html	Mailing List

URL	Date	SRC
https://github.com/JonathanWilbur/CVE-2019-5010	2019-11-06
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0758	2024-08-04

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html	2023-11-07
https://access.redhat.com/errata/RHSA-2019:3520	2023-11-07
https://access.redhat.com/errata/RHSA-2019:3725	2023-11-07
https://security.gentoo.org/glsa/202003-26	2023-11-07
https://access.redhat.com/security/cve/CVE-2019-5010	2019-11-06
https://bugzilla.redhat.com/show_bug.cgi?id=1666519	2019-11-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 2.7.0 < 2.7.16 Search vendor "Python" for product "Python" and version " >= 2.7.0 < 2.7.16"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.4.0 < 3.4.10 Search vendor "Python" for product "Python" and version " >= 3.4.0 < 3.4.10"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.5.0 < 3.5.7 Search vendor "Python" for product "Python" and version " >= 3.5.0 < 3.5.7"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.6.0 < 3.6.9 Search vendor "Python" for product "Python" and version " >= 3.6.0 < 3.6.9"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.7.0 < 3.7.3 Search vendor "Python" for product "Python" and version " >= 3.7.0 < 3.7.3"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				8.1 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "8.1"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				8.2 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "8.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				8.4 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "8.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				8.6 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "8.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				8.2 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "8.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				8.4 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "8.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				8.6 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "8.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				8.2 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "8.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				8.4 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "8.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				8.6 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "8.6"		-		Affected