Vulnerability Details : CVE-2021-3712
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 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y).
Vulnerability category: OverflowDenial of service
Products affected by CVE-2021-3712
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:secure_backup:18.1.0.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_communications_broker:3.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_communications_broker:3.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_connectors:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:jd_edwards_world_security:a9.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_border_controller:8.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_session_border_controller:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_session_border_controller:8.4:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:enterprise_session_border_controller:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_console:1.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_unified_data_repository:1.15.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_unified_session_manager:8.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_unified_session_manager:8.4.5:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:essbase:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:essbase:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:essbase:21.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:1.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:health_sciences_inform_publisher:6.3.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:health_sciences_inform_publisher:6.2.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:*:*:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_1:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_2:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_3:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:-:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_4:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_5:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_6:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_7:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_8:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_9:*:*:*:*:*:*
- cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_10:*:*:*:*:*:*
- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:santricity_smi-s_provider:-:*:*:*:*:*:*:*
- Netapp » E-series Santricity Os ControllerVersions from including (>=) 11.0 and up to, including, (<=) 11.50.2cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:manageability_software_development_kit:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:storage_encryption:-:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:nessus_network_monitor:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3712
0.52%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3712
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:P |
8.6
|
4.9
|
NIST | |
7.4
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H |
2.2
|
5.2
|
NIST |
CWE ids for CVE-2021-3712
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3712
-
https://www.debian.org/security/2021/dsa-4963
Debian -- Security Information -- DSA-4963-1 opensslThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/09/msg00014.html
[SECURITY] [DLA 2766-1] openssl security updateMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Oracle Critical Patch Update Advisory - April 2022Patch;Third Party Advisory
-
https://www.tenable.com/security/tns-2021-16
[R1] Stand-alone Security Patch Available for Tenable.sc versions 5.16.0 to 5.19.1 - Security Advisory | Tenable®Third Party Advisory
-
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=94d23fcff9b2a7a8368dfe52214d5c2569882c11
git.openssl.org Git
-
https://kc.mcafee.com/corporate/index?page=content&id=SB10366
Security Bulletin - ePolicy Orchestrator update addresses two product vulnerabilities (CVE-2021-31834 and CVE-2021-31835) and updates Java, OpenSSL, and TomcatThird Party Advisory
-
https://lists.apache.org/thread.html/rad5d9f83f0d11fb3f8bb148d179b8a9ad7c6a17f18d70e5805a713d1%40%3Cdev.tomcat.apache.org%3E
Re: OpenSSL security announcement - do we need a Tomcat Native release?-Apache Mail Archives
-
https://www.oracle.com/security-alerts/cpujan2022.html
Oracle Critical Patch Update Advisory - January 2022Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/09/msg00021.html
[SECURITY] [DLA 2774-1] openssl1.0 security updateMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/rad5d9f83f0d11fb3f8bb148d179b8a9ad7c6a17f18d70e5805a713d1@%3Cdev.tomcat.apache.org%3E
Re: OpenSSL security announcement - do we need a Tomcat Native release? - Pony MailMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/r18995de860f0e63635f3008fd2a6aca82394249476d21691e7c59c9e%40%3Cdev.tomcat.apache.org%3E
OpenSSL security announcement - do we need a Tomcat Native release?-Apache Mail Archives
-
https://security.netapp.com/advisory/ntap-20210827-0010/
August 2021 OpenSSL Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://lists.apache.org/thread.html/r18995de860f0e63635f3008fd2a6aca82394249476d21691e7c59c9e@%3Cdev.tomcat.apache.org%3E
OpenSSL security announcement - do we need a Tomcat Native release? - Pony MailMailing List;Third Party Advisory
-
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ccb0a11145ee72b042d10593a64eaf9e8a55ec12
git.openssl.org Git
-
https://security.netapp.com/advisory/ntap-20240621-0006/
February 2024 IBM Cognos Analytics Vulnerabilities in NetApp Products | NetApp Product Security
-
https://www.openssl.org/news/secadv/20210824.txt
Vendor Advisory
-
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=94d23fcff9b2a7a8368dfe52214d5c2569882c11
git.openssl.org Git - openssl.git/commitdiffMailing List;Patch;Vendor Advisory
-
https://www.oracle.com/security-alerts/cpuoct2021.html
Oracle Critical Patch Update Advisory - October 2021Patch;Third Party Advisory
-
https://security.gentoo.org/glsa/202209-02
IBM Spectrum Protect: Multiple Vulnerabilities (GLSA 202209-02) — Gentoo securityThird Party Advisory
-
https://security.gentoo.org/glsa/202210-02
OpenSSL: Multiple Vulnerabilities (GLSA 202210-02) — Gentoo securityThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/08/26/2
oss-security - OpenSSL SM2 Decryption Buffer Overflow (CVE-2021-3711), Read buffer overruns processing ASN.1 strings (CVE-2021-3712)Mailing List;Third Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
Patch;Third Party Advisory
-
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ccb0a11145ee72b042d10593a64eaf9e8a55ec12
git.openssl.org Git - openssl.git/commitdiffMailing List;Patch;Vendor Advisory
-
https://www.tenable.com/security/tns-2022-02
[R1] Nessus Network Monitor 6.0.0 Fixes Multiple Third-party Vulnerabilities - Security Advisory | Tenable®Patch;Third Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-244969.pdf
Patch;Third Party Advisory
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