high
7.4
CWE
125 119
Advisory Published
CVE Published
CVE Published
Advisory Published
Updated

CVE-2021-3712: Read buffer overruns processing ASN.1 strings

First published: Thu Aug 19 2021(Updated: )

ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's own "d2i" functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the "data" and "length" fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the "data" field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack). It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y).

Credit: openssl-security@openssl.org openssl-security@openssl.org

Affected SoftwareAffected VersionHow to fix
redhat/jbcs-httpd24-apr<0:1.6.3-107.el8
0:1.6.3-107.el8
redhat/jbcs-httpd24-apr-util<0:1.6.1-84.el8
0:1.6.1-84.el8
redhat/jbcs-httpd24-curl<0:7.78.0-2.el8
0:7.78.0-2.el8
redhat/jbcs-httpd24-httpd<0:2.4.37-78.el8
0:2.4.37-78.el8
redhat/jbcs-httpd24-nghttp2<0:1.39.2-39.el8
0:1.39.2-39.el8
redhat/jbcs-httpd24-openssl<1:1.1.1g-8.el8
1:1.1.1g-8.el8
redhat/jbcs-httpd24-openssl-chil<0:1.0.0-7.el8
0:1.0.0-7.el8
redhat/jbcs-httpd24-openssl-pkcs11<0:0.4.10-22.el8
0:0.4.10-22.el8
redhat/jbcs-httpd24-apr<0:1.6.3-107.jbcs.el7
0:1.6.3-107.jbcs.el7
redhat/jbcs-httpd24-apr-util<0:1.6.1-84.jbcs.el7
0:1.6.1-84.jbcs.el7
redhat/jbcs-httpd24-curl<0:7.78.0-2.jbcs.el7
0:7.78.0-2.jbcs.el7
redhat/jbcs-httpd24-httpd<0:2.4.37-78.jbcs.el7
0:2.4.37-78.jbcs.el7
redhat/jbcs-httpd24-nghttp2<0:1.39.2-39.jbcs.el7
0:1.39.2-39.jbcs.el7
redhat/jbcs-httpd24-openssl<1:1.1.1g-8.jbcs.el7
1:1.1.1g-8.jbcs.el7
redhat/jbcs-httpd24-openssl-chil<0:1.0.0-7.jbcs.el7
0:1.0.0-7.jbcs.el7
redhat/jbcs-httpd24-openssl-pkcs11<0:0.4.10-22.jbcs.el7
0:0.4.10-22.jbcs.el7
redhat/openssl<1:1.0.2k-23.el7_9
1:1.0.2k-23.el7_9
redhat/openssl<1:1.1.1k-5.el8_5
1:1.1.1k-5.el8_5
redhat/jws5-tomcat<0:9.0.50-3.redhat_00004.1.el7
0:9.0.50-3.redhat_00004.1.el7
redhat/jws5-tomcat-native<0:1.2.30-3.redhat_3.el7
0:1.2.30-3.redhat_3.el7
redhat/jws5-tomcat-vault<0:1.1.8-4.Final_redhat_00004.1.el7
0:1.1.8-4.Final_redhat_00004.1.el7
redhat/jws5-tomcat<0:9.0.50-3.redhat_00004.1.el8
0:9.0.50-3.redhat_00004.1.el8
redhat/jws5-tomcat-native<0:1.2.30-3.redhat_3.el8
0:1.2.30-3.redhat_3.el8
redhat/jws5-tomcat-vault<0:1.1.8-4.Final_redhat_00004.1.el8
0:1.1.8-4.Final_redhat_00004.1.el8
redhat/openssl<1.1.1
1.1.1
OpenSSL OpenSSL>=1.0.2<1.0.2za
OpenSSL OpenSSL>=1.1.1<1.1.1l
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Debian Debian Linux=11.0
NetApp Clustered Data ONTAP
Netapp Clustered Data Ontap Antivirus Connector
NetApp E-Series SANtricity OS Controller>=11.0<=11.50.2
Netapp Hci Management Node
Netapp Manageability Software Development Kit
Netapp Santricity Smi-s Provider
Netapp Solidfire
Netapp Storage Encryption
McAfee ePolicy Orchestrator<5.10.0
McAfee ePolicy Orchestrator=5.10.0
McAfee ePolicy Orchestrator=5.10.0-update_1
McAfee ePolicy Orchestrator=5.10.0-update_10
McAfee ePolicy Orchestrator=5.10.0-update_2
McAfee ePolicy Orchestrator=5.10.0-update_3
McAfee ePolicy Orchestrator=5.10.0-update_4
McAfee ePolicy Orchestrator=5.10.0-update_5
McAfee ePolicy Orchestrator=5.10.0-update_6
McAfee ePolicy Orchestrator=5.10.0-update_7
McAfee ePolicy Orchestrator=5.10.0-update_8
McAfee ePolicy Orchestrator=5.10.0-update_9
Tenable Nessus Network Monitor<6.0.0
Tenable Tenable.sc>=5.16.0<=5.19.1
Oracle Essbase<11.1.2.4.047
Oracle Essbase>=21.0<21.3
Oracle Essbase=21.3
Oracle Mysql Connectors<=8.0.27
Oracle Mysql Enterprise Monitor<=8.0.25
Oracle Mysql Server>=5.7.0<=5.7.35
Oracle Mysql Server>=8.0.0<=8.0.26
Oracle Mysql Workbench<=8.0.26
Oracle PeopleSoft Enterprise PeopleTools=8.57
Oracle PeopleSoft Enterprise PeopleTools=8.58
Oracle PeopleSoft Enterprise PeopleTools=8.59
Oracle Secure Backup=18.1.0.1.0
Oracle ZFS Storage Appliance Kit=8.8
Siemens Sinec Infrastructure Network Services<1.0.1.1
Oracle Communications Cloud Native Core Console=1.9.0
Oracle Communications Cloud Native Core Security Edge Protection Proxy=1.7.0
Oracle Communications Cloud Native Core Unified Data Repository=1.15.0
Oracle Communications Session Border Controller=8.4
Oracle Communications Session Border Controller=9.0
Oracle Communications Unified Session Manager=8.2.5
Oracle Communications Unified Session Manager=8.4.5
Oracle Enterprise Communications Broker=3.2.0
Oracle Enterprise Communications Broker=3.3.0
Oracle Enterprise Session Border Controller=8.4
Oracle Enterprise Session Border Controller=9.0
Oracle Health Sciences Inform Publisher=6.2.1.0
Oracle Health Sciences Inform Publisher=6.3.1.1
Oracle Jd Edwards Enterpriseone Tools<9.2.6.3
Oracle Jd Edwards World Security=a9.4
rust/openssl-src<111.16.0
111.16.0
IBM Cognos Analytics 11.2.x<=IBM Cognos Analytics 11.2.x
IBM Cognos Analytics 11.1.x<=IBM Cognos Analytics 11.1.x
debian/openssl
1.1.1w-0+deb11u1
1.1.1w-0+deb11u2
3.0.15-1~deb12u1
3.0.14-1~deb12u2
3.3.2-2

Remedy

https://cert-portal.siemens.com/productcert/pdf/ssa-244969.pdf

Remedy

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

Remedy

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=94d23fcff9b2a7a8368dfe52214d5c2569882c11

Remedy

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ccb0a11145ee72b042d10593a64eaf9e8a55ec12

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

https://www.oracle.com/security-alerts/cpuoct2021.html

Remedy

https://www.tenable.com/security/tns-2022-02

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