EDIPARTYNAME NULL pointer dereference
Noroxi assessment
Priority: Monitor (action score 25/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 7% (FIRST EPSS); higher than 94.1% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: openssl (Alpine:v3.10) 1.1.1i-r0; libressl (Alpine:v3.13) 3.1.5-r0; openssl3 (Alpine:v3.15) 1.1.1i-r0.
- Mentioned 6 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to openssl (Alpine:v3.10) 1.1.1i-r0; libressl (Alpine:v3.13) 3.1.5-r0; openssl3 (Alpine:v3.15) 1.1.1i-r0 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. OpenSSL itself uses the GENERAL_NAME_cmp function for two purposes: 1) Comparing CRL distribution point names between an available CRL and a CRL distribution point embedded in an X509 certificate 2) When verifying that a timestamp response token signer matches the timestamp authority name (exposed via the API functions TS_RESP_verify_response and TS_RESP_verify_token) If an attacker can control both items being compared then that attacker could trigger a crash. For example if the attacker can trick a client or server into checking a malicious certificate against a malicious CRL then this may occur. Note that some applications automatically download CRLs based on a URL embedded in a certificate. This checking happens prior to the signatures on the certificate and CRL being verified. OpenSSL's s_server, s_client and verify tools have support for the "-crl_download" option which implements automatic CRL downloading and this attack has been demonstrated to work against those tools. Note that an unrelated bug means that affected versions of OpenSSL cannot parse or construct correct encodings of EDIPARTYNAME. However it is possible to construct a malformed EDIPARTYNAME that OpenSSL's parser will accept and hence trigger this attack. All OpenSSL 1.1.1 and 1.0.2 versions are affected by this issue. Other OpenSSL releases are out of support and have not been checked. Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h). Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w).
- BDU:2021-00872
- DLA-2492-1
- DLA-2493-1
- DSA-4807-1
- openSUSE-SU-2020:2223-1
- openSUSE-SU-2020:2236-1
- openSUSE-SU-2020:2245-1
- openSUSE-SU-2020:2269-1
- openSUSE-SU-2021:0064-1
- openSUSE-SU-2021:0065-1
- openSUSE-SU-2021:0082-1
- openSUSE-SU-2024:11041-1
- openSUSE-SU-2024:11797-1
- openSUSE-SU-2024:12687-1
- RHSA-2020:5422
- RHSA-2020:5476
- RHSA-2020:5566
- RHSA-2020:5588
- RHSA-2020:5623
- RHSA-2020:5637
- Published
- Dec 8, 2020
- Updated
- Jun 16, 2026
- EPSS
- 7.0% · 94th percentile
- CWE
- CWE-476
Report tools
Action score
25
Monitor
Low priority for now.
- CVSS
- 23 / 40 · 5.9 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 7.0%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| openssl | openssl | cpe:2.3:a:openssl:openssl |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| oracle | api gateway | cpe:2.3:a:oracle:api_gateway |
| oracle | business intelligence | cpe:2.3:a:oracle:business_intelligence |
| oracle | communications cloud native core network function cloud native environment | cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment |
| oracle | communications diameter intelligence hub | cpe:2.3:a:oracle:communications_diameter_intelligence_hub |
| oracle | communications session border controller | cpe:2.3:a:oracle:communications_session_border_controller |
| oracle | communications session router | cpe:2.3:a:oracle:communications_session_router |
| oracle | communications subscriber-aware load balancer | cpe:2.3:a:oracle:communications_subscriber-aware_load_balancer |
| oracle | communications unified session manager | cpe:2.3:a:oracle:communications_unified_session_manager |
| oracle | enterprise communications broker | cpe:2.3:a:oracle:enterprise_communications_broker |
and 34 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- nodejs node.js15.0.0 and later · before 15.5.0
- nodejs node.js12.13.0 and later · before 12.20.1
- nodejs node.js14.0.0 and later · up to 14.14.0 inclusive
- nodejs node.js14.15.0 and later · before 14.15.4
- nodejs node.js10.0.0 and later · up to 10.12.0 inclusive
- nodejs node.js10.13.0 and later · before 10.23.1
- nodejs node.js12.0.0 and later · up to 12.12.0 inclusive
- oracle mysqlup to 8.0.22 inclusive
- oracle mysql serverup to 5.7.32 inclusive
- oracle mysql server8.0.15 and later · up to 8.0.22 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (openssl). Independent of NVD's CPE analysis and usually ahead of it.
OpenSSL OpenSSL
- Fixed in OpenSSL 1.1.1i (Affected 1.1.1-1.1.1h), Fixed in OpenSSL 1.0.2x (Affected 1.0.2-1.0.2w)affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Alpine:v3.10 | openssl | from 1.0.2 · before 1.1.1i-r0 | 1.1.1i-r0 |
| Alpine:v3.13 | libressl | before 3.1.5-r0 | 3.1.5-r0 |
| Alpine:v3.15 | openssl3 | before 1.1.1i-r0 | 1.1.1i-r0 |
| Debian:10 | openssl | before 1.1.1d-0+deb10u4 | 1.1.1d-0+deb10u4 |
| Debian:12 | openssl | before 1.1.1i-1 | 1.1.1i-1 |
| Debian:9 | openssl | before 1.1.0l-1~deb9u2 | 1.1.0l-1~deb9u2 |
| Debian:9 | openssl1.0 | before 1.0.2u-1~deb9u3 | 1.0.2u-1~deb9u3 |
| openSUSE:Leap 15.1 | nodejs10 | before 10.23.1-lp151.2.15.1 | 10.23.1-lp151.2.15.1 |
| openSUSE:Leap 15.1 | openssl-1_0_0 | before 1.0.2p-lp151.5.20.1 | 1.0.2p-lp151.5.20.1 |
| openSUSE:Leap 15.1 | openssl-1_1 | before 1.1.0i-lp151.8.12.2 | 1.1.0i-lp151.8.12.2 |
| openSUSE:Leap 15.2 | nodejs10 | before 10.23.1-lp152.2.9.1 | 10.23.1-lp152.2.9.1 |
| openSUSE:Leap 15.2 | nodejs12 | before 12.20.1-lp152.3.9.1 | 12.20.1-lp152.3.9.1 |
| openSUSE:Leap 15.2 | openssl-1_0_0 | before 1.0.2p-lp152.8.9.1 | 1.0.2p-lp152.8.9.1 |
| openSUSE:Leap 15.2 | openssl-1_1 | before 1.1.1d-lp152.7.9.1 | 1.1.1d-lp152.7.9.1 |
| openSUSE:Tumbleweed | matrix-synapse | before 1.43.0-1.1 | 1.43.0-1.1 |
| openSUSE:Tumbleweed | openssl-1_0_0 | before 1.0.2u-12.1 | 1.0.2u-12.1 |
| openSUSE:Tumbleweed | openssl-3 | before 3.0.1-1.1 | 3.0.1-1.1 |
| Red Hat:enterprise_linux:7::client | openssl | before 1:1.0.2k-21.el7_9 | 1:1.0.2k-21.el7_9 |
| Red Hat:enterprise_linux:7::client | openssl-debuginfo | before 1:1.0.2k-21.el7_9 | 1:1.0.2k-21.el7_9 |
| Red Hat:enterprise_linux:7::client | openssl-devel | before 1:1.0.2k-21.el7_9 | 1:1.0.2k-21.el7_9 |
| Red Hat:enterprise_linux:7::client | openssl-libs | before 1:1.0.2k-21.el7_9 | 1:1.0.2k-21.el7_9 |
| Red Hat:enterprise_linux:7::client | openssl-perl | before 1:1.0.2k-21.el7_9 | 1:1.0.2k-21.el7_9 |
| Red Hat:enterprise_linux:7::client | openssl-static | before 1:1.0.2k-21.el7_9 | 1:1.0.2k-21.el7_9 |
| Red Hat:enterprise_linux:8::baseos | openssl | before 1:1.1.1g-12.el8_3 | 1:1.1.1g-12.el8_3 |
+96
Same product
openssl: all recordsOther highest-scoring records for the same primary product.
- CVE-2014-0160The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remKEV90Now
- CVE-2021-3711SM2 Decryption Buffer Overflow65This week
- CVE-2003-0545Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code 65This week
- CVE-2016-2108The ASN.1 implementation in OpenSSL before 1.0.1o and 1.0.2 before 1.0.2c allows remote attackers to execute arbitrary code or cause a denia62This week
- CVE-2016-6309statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a den60This week
- CVE-2022-3786X.509 Email Address Variable Length Buffer Overflow58Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| alpine:libressl | 3.1.5-r0 · Alpine:v3.13 | Package registry (OSV) |
| alpine:openssl | 1.1.1i-r0 · Alpine:v3.10 | Package registry (OSV) |
| alpine:openssl3 | 1.1.1i-r0 · Alpine:v3.15 | Package registry (OSV) |
| debian:openssl | 1.1.1i-1 · Debian:12 | Package registry (OSV) |
| debian:openssl1.0 | 1.0.2u-1~deb9u3 · Debian:9 | Package registry (OSV) |
| opensuse:matrix-synapse | 1.43.0-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:nodejs10 | 10.23.1-lp152.2.9.1 · openSUSE:Leap 15.2 | Package registry (OSV) |
| opensuse:nodejs12 | 12.20.1-lp152.3.9.1 · openSUSE:Leap 15.2 | Package registry (OSV) |
| opensuse:openssl-1_0_0 | 1.0.2p-lp152.8.9.1 · openSUSE:Leap 15.2 | Package registry (OSV) |
| opensuse:openssl-1_1 | 1.1.1d-lp152.7.9.1 · openSUSE:Leap 15.2 | Package registry (OSV) |
| opensuse:openssl-3 | 3.0.1-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:jbcs-httpd24-brotli | 0:1.0.6-40.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-brotli-debuginfo | 0:1.0.6-40.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-brotli-devel | 0:1.0.6-40.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd | 0:2.4.37-66.jbcs.el7 · Red Hat:jboss_core_services:1::el7 | Package registry (OSV) |
| red hat:openssl | 1:1.1.1c-16.el8_2 · Red Hat:rhel_eus:8.2::baseos | Package registry (OSV) |
| red hat:openssl-debuginfo | 1:1.1.1c-16.el8_2 · Red Hat:rhel_eus:8.2::baseos | Package registry (OSV) |
| red hat:openssl-debugsource | 1:1.1.1c-16.el8_2 · Red Hat:rhel_eus:8.2::baseos | Package registry (OSV) |
| red hat:openssl-devel | 1:1.1.1c-16.el8_2 · Red Hat:rhel_eus:8.2::baseos | Package registry (OSV) |
| red hat:openssl-libs | 1:1.1.1c-16.el8_2 · Red Hat:rhel_eus:8.2::baseos | Package registry (OSV) |
| red hat:openssl-libs-debuginfo | 1:1.1.1c-16.el8_2 · Red Hat:rhel_eus:8.2::baseos | Package registry (OSV) |
| red hat:openssl-perl | 1:1.1.1c-16.el8_2 · Red Hat:rhel_eus:8.2::baseos | Package registry (OSV) |
| red hat:openssl-static | 1:1.0.2k-21.el7_9 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:nodejs10 | 10.23.1-1.30.1 · SUSE:Linux Enterprise Module for Web and Scripting 15 SP1 | Package registry (OSV) |
| suse:nodejs12 | 12.20.1-4.10.1 · SUSE:Linux Enterprise Module for Web and Scripting 15 SP2 | Package registry (OSV) |
| suse:openssl | 1.0.2j-60.63.1 · SUSE:HPE Helion OpenStack 8 | Package registry (OSV) |
| suse:openssl-1_0_0 | 1.0.2p-3.30.1 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:openssl-1_1 | 1.1.0i-14.12.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP1 | Package registry (OSV) |
| suse:openssl1 | 1.0.1g-0.58.30.1 · SUSE:Linux Enterprise Server 11-SECURITY | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:7 | 2020-12-09 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoCsame day
- TodayOct 16, 2026+2138 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-22-0215 · Mar 11, 2022(Siemens Güvenlik Bildirimi)
- TR-21-0964 · Dec 3, 2021(Hitachi Güvenlik Zafiyeti)
- TR-21-0803 · Oct 5, 2021(IBM Güvenlik Bülteni)
- TR-21-0756 · Sep 20, 2021(IBM Güvenlik Bülteni Yayınladı)
- TR-21-0674 · Aug 25, 2021(IBM Güvenlik Bülteni Yayınladı)
- TR-21-0622 · Aug 9, 2021(IBM Güvenlik Bülteni Yayınladı)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=2154ab83e14ede338d2ede9bbe5cdfce5d5a6c9e
- git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=f960d81215ebf3f65e03d4d5d857fb9b666d6920
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44676
- lists.apache.org/thread.html/r63c6f2dd363d9b514d0a4bcf624580616a679898cc14c109a49b750c%40%3Cdev.tomcat.apache.org%3E
- lists.apache.org/thread.html/rbb769f771711fb274e0a4acb1b5911c8aab544a6ac5e8c12d40c5143%40%3Ccommits.pulsar.apache.org%3E
- lists.debian.org/debian-lts-announce/2020/12/msg00020.html
- lists.debian.org/debian-lts-announce/2020/12/msg00021.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DGSI34Y5LQ5RYXN4M2I5ZQT65LFVDOUU/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PWPSSZNZOBJU2YR6Z4TGHXKYW3YP5QG7/
- security.FreeBSD.org/advisories/FreeBSD-SA-20:33.openssl.asc
- security.gentoo.org/glsa/202012-13
- security.netapp.com/advisory/ntap-20201218-0005/
- security.netapp.com/advisory/ntap-20210513-0002/
- security.netapp.com/advisory/ntap-20240621-0006/
- www.debian.org/security/2020/dsa-4807
- www.openssl.org/news/secadv/20201208.txt
- www.oracle.com//security-alerts/cpujul2021.html
- www.oracle.com/security-alerts/cpuApr2021.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.