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The vulnerability of the SSL_check_chain function in the TLS protocol implementation of the OpenSSL library involves the possibility of reassigning the null pointer due to incorrect processing of the “signature_algorithms_cert” extension in TLS. This allows a perpetrator to cause a service failure.

🗓️ 22 Jun 2020 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 1 Views

OpenSSL flaw in SSL_check_chain allows null pointer dereference via signature_algorithms_cert handling, causing service failure.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
FreeBSD		OpenSSL remote denial of service vulnerability
21 Apr 202000:00
–freebsd
FreeBSD		Gitlab -- Multiple Vulnerabilities
30 Apr 202000:00
–freebsd
IBM Security Bulletins		Security Bulletin: OpenSSL vulnerabilities affect IBM Spectrum Control (CVE-2020-1967, CVE-2019-1551)
23 Mar 202222:07
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in OpenSSL affect IBM Tivoli Netcool System Service Monitors/Application Service Monitors (CVE-2018-5407,CVE-2020-1967,CVE-2018-0734,CVE-2019-1563,CVE-2019-1549,CVE-2019-1552,CVE-2019-1559,CVE-2018-0735)
15 Dec 202020:13
–ibm
IBM Security Bulletins		Security Bulletin: IBM Security QRadar Analyst Workflow add on to IBM QRadar SIEM is vulnerable to using components with known vulnerabilities
27 Jan 202123:48
–ibm
IBM Security Bulletins		Security Bulletin: OpenSSL for IBM i is affected by CVE-2020-1967
19 Jun 202014:58
–ibm
IBM Security Bulletins		Security Bulletin: Denial Of Service vulnerability in OpenSSL affects IBM Safer Payments (CVE-2020-1967)
24 Apr 202313:10
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability affects Watson Explorer Foundational Components (CVE-2020-1967)
22 Jul 202006:09
–ibm
IBM Security Bulletins		Security Bulletin: OpenSSL disclosed vulnerability affects MessageGatweay (CVE-2020-1967)
30 Apr 202017:09
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in OpenSSL library affects OS Pattern Kit used in IBM Cloud Pak System
11 Sep 202012:51
–ibm
Rows per page
Vulners
Node
opensslopensslMatch1.1.1d
OR
opensslopensslMatch1.1.1e
OR
opensslopensslMatch1.1.1f
OR
oraclemysql_enterprise_monitorRange≤4.0.12
OR
oraclemysql_enterprise_monitorRange≤8.0.20
OR
oraclemysql_connectorsRange≤8.0.20
OR
oraclemysql_serverRange≤5.6.48
OR
oraclemysql_serverRange≤5.7.30
OR
oraclemysql_serverRange≤8.0.20
OR
oracleenterprise_manager_ops_centerMatch12.4.0.0
OR
opensslopensslRange1.1.1d–1.1.1f
OR
oraclejd_edwards_enterpriseone_toolsRange≤9.2.5.0
OR
novellopensuse_leapMatch15.1
OR
fedorafedoraMatch30
OR
fedorafedoraMatch31
OR
fedorafedoraMatch32
OR
novellopensuse_leapMatch15.2

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16 Sep 2024 00:00Current
6.4Medium risk
Vulners AI Score6.4
CVSS 25
CVSS 37.5
EPSS0.60769
open sslsignature algorithms certnull pointerservice failuretransport layer security
1