OpenSSL 1.1.1 introduced a rewritten random number generator (RNG).
OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Sep 10, 2019
- Updated
- Jun 16, 2026
- EPSS
- 6.2% · 93th percentile
- CWE
- CWE-330
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Report tools
Action score
23
Monitor
Low priority for now.
- CVSS
- 21 / 40 · 5.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 6.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| openssl | openssl | cpe:2.3:a:openssl:openssl |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- openssl openssl1.1.1 and later · up to 1.1.1c 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 1.1.1d (Affected 1.1.1-1.1.1c)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 1.1.1 · before 1.1.1d-r0 | 1.1.1d-r0 |
| Alpine:v3.11 | openssl | from 1.1.1 · before 1.1.1d-r1 | 1.1.1d-r1 |
| Alpine:v3.15 | openssl3 | before 1.1.1d-r1 | 1.1.1d-r1 |
| Debian:12 | openssl | before 1.1.1d-1 | 1.1.1d-1 |
| Red Hat:enterprise_linux:8::baseos | openssl | before 1:1.1.1c-15.el8 | 1:1.1.1c-15.el8 |
| Red Hat:enterprise_linux:8::baseos | openssl-debuginfo | before 1:1.1.1c-15.el8 | 1:1.1.1c-15.el8 |
| Red Hat:enterprise_linux:8::baseos | openssl-debugsource | before 1:1.1.1c-15.el8 | 1:1.1.1c-15.el8 |
| Red Hat:enterprise_linux:8::baseos | openssl-devel | before 1:1.1.1c-15.el8 | 1:1.1.1c-15.el8 |
| Red Hat:enterprise_linux:8::baseos | openssl-libs | before 1:1.1.1c-15.el8 | 1:1.1.1c-15.el8 |
| Red Hat:enterprise_linux:8::baseos | openssl-libs-debuginfo | before 1:1.1.1c-15.el8 | 1:1.1.1c-15.el8 |
| Red Hat:enterprise_linux:8::baseos | openssl-perl | before 1:1.1.1c-15.el8 | 1:1.1.1c-15.el8 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-apr | before 0:1.6.3-86.jbcs.el6 | 0:1.6.3-86.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-apr-debuginfo | before 0:1.6.3-86.jbcs.el6 | 0:1.6.3-86.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-apr-devel | before 0:1.6.3-86.jbcs.el6 | 0:1.6.3-86.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-brotli | before 0:1.0.6-21.jbcs.el6 | 0:1.0.6-21.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-brotli-debuginfo | before 0:1.0.6-21.jbcs.el6 | 0:1.0.6-21.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-brotli-devel | before 0:1.0.6-21.jbcs.el6 | 0:1.0.6-21.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd | before 0:2.4.37-52.jbcs.el6 | 0:2.4.37-52.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-debuginfo | before 0:2.4.37-52.jbcs.el6 | 0:2.4.37-52.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-devel | before 0:2.4.37-52.jbcs.el6 | 0:2.4.37-52.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-manual | before 0:2.4.37-52.jbcs.el6 | 0:2.4.37-52.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-selinux | before 0:2.4.37-52.jbcs.el6 | 0:2.4.37-52.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-httpd-tools | before 0:2.4.37-52.jbcs.el6 | 0:2.4.37-52.jbcs.el6 |
| Red Hat:jboss_core_services:1::el6 | jbcs-httpd24-mod_cluster-native | before 0:1.3.12-41.Final_redhat_2.jbcs.el6 | 0:1.3.12-41.Final_redhat_2.jbcs.el6 |
+40
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:openssl | 1.1.1d-r0 · Alpine:v3.10 | Package registry (OSV) |
| alpine:openssl3 | 1.1.1d-r1 · Alpine:v3.15 | Package registry (OSV) |
| debian:openssl | 1.1.1d-1 · Debian:12 | Package registry (OSV) |
| red hat:jbcs-httpd24-apr | 0:1.6.3-86.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-apr-debuginfo | 0:1.6.3-86.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-apr-devel | 0:1.6.3-86.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-brotli | 0:1.0.6-21.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-brotli-debuginfo | 0:1.0.6-21.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-brotli-devel | 0:1.0.6-21.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd | 0:2.4.37-52.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-debuginfo | 0:2.4.37-52.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-devel | 0:2.4.37-52.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-manual | 0:2.4.37-52.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-selinux | 0:2.4.37-52.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| red hat:jbcs-httpd24-httpd-tools | 0:2.4.37-52.jbcs.el6 · Red Hat:jboss_core_services:1::el6 | Package registry (OSV) |
| suse:openssl-1_1 | 1.1.1d-2.20.1 · SUSE:Linux Enterprise Desktop 12 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
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).
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.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-330 · Use of Insufficiently Random ValuesCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/
- seclists.org/bugtraq/2019/Oct/1
- security.netapp.com/advisory/ntap-20190919-0002/
- support.f5.com/csp/article/K44070243
- support.f5.com/csp/article/K44070243?utm_source=f5support&%3Butm_medium=RSS
- usn.ubuntu.com/4376-1/
- www.debian.org/security/2019/dsa-4539
- www.openssl.org/news/secadv/20190910.txt
- www.oracle.com/security-alerts/cpuapr2020.html
- www.oracle.com/security-alerts/cpujan2020.html
- www.oracle.com/security-alerts/cpujul2020.html
- www.oracle.com/security-alerts/cpuoct2020.html
- www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.