CVE-2021-23841
- Source
- https://cve.org/CVERecord?id=CVE-2021-23841
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23841.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-23841
- Aliases
- Downstream
ALPINE (1)
BELL (1)
CLEANSTART (2)
JLSEC (1)
MGASA (1)
OESA (1)
openSUSE (4)
RLSA (2)
SUSE (11)
- Related
- Published
- 2021-02-16T17:15:13Z
- Modified
- 2026-10-20T14:10:44Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).
- Database specific
{ "unresolved_ranges": [ { "cpes": [ "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "fixed": "14.6" } ], "source": "CPE_RANGE" } ], "vendor_product": "apple:ipados" }, { "cpes": [ "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "fixed": "14.6" } ], "source": "CPE_RANGE" } ], "vendor_product": "apple:iphone_os" }, { "cpes": [ "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "11.1" }, { "fixed": "11.4" } ], "source": "CPE_RANGE" } ], "vendor_product": "apple:macos" }, { "cpes": [ "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "fixed": "14.1.1" } ], "source": "CPE_RANGE" } ], "vendor_product": "apple:safari" }, { "cpes": [ "cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "fixed": "8.0.23" } ], "source": "CPE_RANGE" } ], "vendor_product": "oracle:mysql_enterprise_monitor" }, { "cpes": [ "cpe:2.3:a:siemens:sinec_ins:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "fixed": "1.0" } ], "source": "CPE_RANGE" } ], "vendor_product": "siemens:sinec_ins" }, { "cpes": [ "cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "5.13.0" }, { "last_affected": "5.17.0" } ], "source": "CPE_RANGE" } ], "vendor_product": "tenable:tenable.sc" }, { "cpes": [ "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "10.0" }, { "last_affected": "10.0" } ], "source": "CPE_STRING" } ], "vendor_product": "debian:debian_linux" }, { "cpes": [ "cpe:2.3:a:oracle:business_intelligence:12.2.1.3.0:*:*:*:enterprise:*:*:*", "cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0:*:*:*:enterprise:*:*:*", "cpe:2.3:a:oracle:business_intelligence:5.5.0.0.0:*:*:*:enterprise:*:*:*", "cpe:2.3:a:oracle:business_intelligence:5.9.0.0.0:*:*:*:enterprise:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "5.5.0.0.0" }, { "last_affected": "5.5.0.0.0" }, { "introduced": "5.9.0.0.0" }, { "last_affected": "5.9.0.0.0" }, { "introduced": "12.2.1.3.0" }, { "last_affected": "12.2.1.3.0" }, { "introduced": "12.2.1.4.0" }, { "last_affected": "12.2.1.4.0" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:business_intelligence" }, { "cpes": [ "cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "1.15.0" }, { "last_affected": "1.15.0" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:communications_cloud_native_core_policy" }, { "cpes": [ "cpe:2.3:a:oracle:enterprise_manager_for_storage_management:13.4.0.0:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "13.4.0.0" }, { "last_affected": "13.4.0.0" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:enterprise_manager_for_storage_management" }, { "cpes": [ "cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "12.4.0.0" }, { "last_affected": "12.4.0.0" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:enterprise_manager_ops_center" }, { "cpes": [ "cpe:2.3:a:oracle:essbase:21.2:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "21.2" }, { "last_affected": "21.2" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:essbase" }, { "cpes": [ "cpe:2.3:a:oracle:jd_edwards_world_security:a9.4:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "a9.4" }, { "last_affected": "a9.4" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:jd_edwards_world_security" }, { "cpes": [ "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:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "8.57" }, { "last_affected": "8.57" }, { "introduced": "8.58" }, { "last_affected": "8.58" }, { "introduced": "8.59" }, { "last_affected": "8.59" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:peoplesoft_enterprise_peopletools" }, { "cpes": [ "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "8.8" }, { "last_affected": "8.8" } ], "source": "CPE_STRING" } ], "vendor_product": "oracle:zfs_storage_appliance_kit" }, { "cpes": [ "cpe:2.3:a:siemens:sinec_ins:1.0:-:*:*:*:*:*:*", "cpe:2.3:a:siemens:sinec_ins:1.0:sp1:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "1.0-NA" }, { "last_affected": "1.0-NA" }, { "introduced": "1.0-sp1" }, { "last_affected": "1.0-sp1" } ], "source": "CPE_STRING" } ], "vendor_product": "siemens:sinec_ins" }, { "cpes": [ "cpe:2.3:a:tenable:nessus_network_monitor:5.11.0:*:*:*:*:*:*:*", "cpe:2.3:a:tenable:nessus_network_monitor:5.11.1:*:*:*:*:*:*:*", "cpe:2.3:a:tenable:nessus_network_monitor:5.12.0:*:*:*:*:*:*:*", "cpe:2.3:a:tenable:nessus_network_monitor:5.12.1:*:*:*:*:*:*:*", "cpe:2.3:a:tenable:nessus_network_monitor:5.13.0:*:*:*:*:*:*:*" ], "extracted_events": [ { "range": [ { "introduced": "5.11.0" }, { "last_affected": "5.11.0" }, { "introduced": "5.11.1" }, { "last_affected": "5.11.1" }, { "introduced": "5.12.0" }, { "last_affected": "5.12.0" }, { "introduced": "5.12.1" }, { "last_affected": "5.12.1" }, { "introduced": "5.13.0" }, { "last_affected": "5.13.0" } ], "source": "CPE_STRING" } ], "vendor_product": "tenable:nessus_network_monitor" } ] }- References
-
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=122a19ab48091c657f7cb1fb3af9fc07bd557bbf
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=8252ee4d90f3f2004d3d0aeeed003ad49c9a7807
- http://seclists.org/fulldisclosure/2021/May/67
- http://seclists.org/fulldisclosure/2021/May/68
- http://seclists.org/fulldisclosure/2021/May/70
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44846
- https://security.gentoo.org/glsa/202103-03
- https://security.netapp.com/advisory/ntap-20210219-0009/
- https://security.netapp.com/advisory/ntap-20210513-0002/
- https://security.netapp.com/advisory/ntap-20240621-0006/
- https://support.apple.com/kb/HT212528
- https://support.apple.com/kb/HT212529
- https://support.apple.com/kb/HT212534
- https://www.debian.org/security/2021/dsa-4855
- https://www.openssl.org/news/secadv/20210216.txt
- https://www.tenable.com/security/tns-2021-03
- https://www.tenable.com/security/tns-2021-09
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
Affected packages
Git
github.com/graalvm/graalvm-ce-builds
Affected ranges
- Type
- GIT
- Repo
- https://github.com/graalvm/graalvm-ce-builds
- Events
-
IntroducedLast Affected
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:oracle:graalvm:19.3.5:*:*:*:enterprise:*:*:*", "range": [ { "introduced": "19.3.5" }, { "last_affected": "19.3.5" } ], "source": "CPE_STRING" }, { "cpe": "cpe:2.3:a:oracle:graalvm:20.3.1.2:*:*:*:enterprise:*:*:*", "range": [ { "introduced": "20.3.1.2" }, { "last_affected": "20.3.1.2" } ], "source": "CPE_STRING" }, { "cpe": "cpe:2.3:a:oracle:graalvm:21.0.0.2:*:*:*:enterprise:*:*:*", "range": [ { "introduced": "21.0.0.2" }, { "last_affected": "21.0.0.2" } ], "source": "CPE_STRING" } ] }
github.com/mysql/mysql-server
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mysql/mysql-server
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "range": [ { "introduced": "0" }, { "fixed": "5.7.33" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "range": [ { "introduced": "8.0.15" }, { "fixed": "8.0.23" } ], "source": "CPE_RANGE" } ] }
Affected versions
mysql-3.*
mysql-3.23.22-beta
mysql-3.23.28-gamma
mysql-3.23.30-gamma
mysql-3.23.31
mysql-3.23.32
mysql-3.23.33
mysql-3.23.36
mysql-4.*
mysql-4.0.2
mysql-4.0.4
mysql-5.*
mysql-5.1.4
mysql-5.7.31
mysql-5.7.32
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23841.json"
vanir_signatures
[
{
"deprecated": false,
"digest": {
"line_hashes": [
"286756561296075042237231219649184368171",
"302896255058266923472696425836035569717",
"300297427993859605007554044173966498739",
"175565100923089660637647648328373853699",
"71802579880224164103266412744806334599",
"315666916814277685292192961936838231932",
"198092292660585766502869236426726266894",
"162640942130416387239939759911226756525"
],
"threshold": 0.9
},
"id": "CVE-2021-23841-a59356ae",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/mysql/mysql-server/commit/e5d189ecb9465f4be6235109dd3dbcaab01ddc53",
"target": {
"file": "include/welcome_copyright_notice.h"
}
}
]
vanir_signatures_modified
"2026-10-20T14:10:44Z"
github.com/openssl/openssl
Affected ranges
- Type
- GIT
- Repo
- https://github.com/openssl/openssl
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "range": [ { "introduced": "1.0.2" }, { "fixed": "1.0.2y" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "range": [ { "introduced": "1.1.1" }, { "fixed": "1.1.1j" } ], "source": "CPE_RANGE" } ] }
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23841.json"
vanir_signatures
[
{
"deprecated": false,
"digest": {
"line_hashes": [
"28170854778703993674264004058177114599",
"73132526844288570625317440636111911761",
"177405411499435185068645597737938634778",
"224809958623850711330610094965797758930",
"295554444428855106393106961197201359586"
],
"threshold": 0.9
},
"id": "CVE-2021-23841-c377fa22",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/openssl/openssl/commit/e04bd3433fd84e1861bf258ea37928d9845e6a86",
"target": {
"file": "include/openssl/opensslv.h"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"251633914150035957322733061977107206211",
"338514574181828579838011565939158652696",
"76638288692106140328510055542557597351",
"142922657400765574308962710386922248045",
"71649992455794854055653842592139575350",
"65527166711110472566013424527579064967",
"253196866009476977787139000804413898733",
"172177136897997206866313011107384691461"
],
"threshold": 0.9
},
"id": "CVE-2021-23841-e051451f",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/openssl/openssl/commit/e818b74be2170fbe957a07b0da4401c2b694b3b8",
"target": {
"file": "crypto/opensslv.h"
}
}
]
vanir_signatures_modified
"2026-10-20T14:10:44Z"