CVE-2022-1473: Resource leakage when decoding certificates and keys
Noroxi assessment
Priority: Monitor (action score 31/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 4.5% (FIRST EPSS); higher than 91.6% 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. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: openssl (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-devel (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-libs (AlmaLinux:9) 1:3.0.1-41.el9_0.
- Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to openssl (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-devel (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-libs (AlmaLinux:9) 1:3.0.1-41.el9_0 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 OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).
- Published
- May 3, 2022
- Updated
- Oct 14, 2026
- EPSS
- 4.5% · 91th percentile
- CWE
- CWE-459
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 4.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · openssl
- 7.5
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- 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 |
| netapp | active iq unified manager | cpe:2.3:a:netapp:active_iq_unified_manager |
| netapp | clustered data ontap | cpe:2.3:a:netapp:clustered_data_ontap |
| netapp | clustered data ontap antivirus connector | cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector |
| netapp | santricity smi-s provider | cpe:2.3:a:netapp:santricity_smi-s_provider |
| netapp | smi-s provider | cpe:2.3:a:netapp:smi-s_provider |
| netapp | snapmanager | cpe:2.3:a:netapp:snapmanager |
| netapp | solidfire, enterprise sds & hci storage node | cpe:2.3:a:netapp:solidfire,_enterprise_sds_&_hci_storage_node |
| netapp | solidfire & hci management node | cpe:2.3:a:netapp:solidfire_&_hci_management_node |
| netapp | a700s firmware | cpe:2.3:o:netapp:a700s_firmware |
| netapp | a700s | cpe:2.3:h:netapp:a700s |
| netapp | h300s firmware | cpe:2.3:o:netapp:h300s_firmware |
and 31 more
Check your server's TLS configuration
The OpenSSL version can't be seen from outside; the free SSL checker tests your certificate, enabled TLS versions and weak ciphers. Confirm the version on your server with the package manager.
Run the SSL checkAffected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- netapp a250 firmwareall versions
- netapp a700s firmwareall versions
- netapp active iq unified managerall versions
- netapp aff 500f firmwareall versions
- netapp aff 8300 firmwareall versions
- netapp aff 8700 firmwareall versions
- netapp aff a400 firmwareall versions
- netapp clustered data ontapall versions
- netapp clustered data ontap antivirus connectorall versions
- netapp fabric-attached storage a400 firmwareall versions
- netapp fas 500f firmwareall versions
- netapp fas 8300 firmwareall versions
- netapp fas 8700 firmwareall versions
- netapp h300e firmwareall versions
- netapp h300s firmwareall versions
- netapp h410s firmwareall versions
- netapp h500e firmwareall versions
- netapp h500s firmwareall versions
- netapp h700e firmwareall versions
- netapp h700s firmwareall versions
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 3.0.3 (Affected 3.0.0,3.0.1,3.0.2)affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:9 | openssl | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| AlmaLinux:9 | openssl-devel | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| AlmaLinux:9 | openssl-libs | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| AlmaLinux:9 | openssl-perl | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| Alpine:v3.15 | openssl3 | before 3.0.3-r0 | 3.0.3-r0 |
| Alpine:v3.17 | openssl | from 3.0.0 · before 3.0.3-r0 | 3.0.3-r0 |
| crates.io | openssl-src | from 300.0.0 · before 300.0.6 | 300.0.6 |
| openSUSE:Leap 15.4 | openssl-3 | before 3.0.1-150400.4.7.1 | 3.0.1-150400.4.7.1 |
| openSUSE:Tumbleweed | openssl-3 | before 3.0.5-1.1 | 3.0.5-1.1 |
| Red Hat:enterprise_linux:9::appstream | openssl-debuginfo | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| Red Hat:enterprise_linux:9::appstream | openssl-debugsource | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| Red Hat:enterprise_linux:9::appstream | openssl-devel | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| Red Hat:enterprise_linux:9::appstream | openssl-libs-debuginfo | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| Red Hat:enterprise_linux:9::appstream | openssl-perl | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| Red Hat:enterprise_linux:9::baseos | openssl | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| Red Hat:enterprise_linux:9::baseos | openssl-libs | before 1:3.0.1-41.el9_0 | 1:3.0.1-41.el9_0 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP4 | openssl-3 | before 3.0.1-150400.4.7.1 | 3.0.1-150400.4.7.1 |
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
Published before and after this one in the same product
- ← EarlierCVE-2022-1343May 3, 2022 · OCSP_basic_verify may incorrectly verify the response signing certificate22Monitor
- ← EarlierCVE-2022-1434May 3, 2022 · Incorrect MAC key used in the RC4-MD5 ciphersuite23Monitor
- Later →CVE-2022-2068Jun 21, 2022 · The c_rehash script allows command injection58Plan
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 |
|---|---|---|
| almalinux:openssl | 1:3.0.1-41.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:openssl-devel | 1:3.0.1-41.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:openssl-libs | 1:3.0.1-41.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:openssl-perl | 1:3.0.1-41.el9_0 · AlmaLinux:9 | Package registry (OSV) |
| alpine:openssl | 3.0.3-r0 · Alpine:v3.17 | Package registry (OSV) |
| alpine:openssl3 | 3.0.3-r0 · Alpine:v3.15 | Package registry (OSV) |
| crates.io:openssl-src | 300.0.6 | Package registry (OSV) |
| opensuse:openssl-3 | 3.0.1-150400.4.7.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| red hat:openssl | 1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::baseos | Package registry (OSV) |
| red hat:openssl-debuginfo | 1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-debugsource | 1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-devel | 1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-libs | 1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::baseos | Package registry (OSV) |
| red hat:openssl-libs-debuginfo | 1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-perl | 1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| suse:openssl-3 | 3.0.1-150400.4.7.1 · SUSE:Linux Enterprise Module for Basesystem 15 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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-22-0574 · Aug 31, 2022(RedHat Güvenlik Güncellemesi)
- TR-22-0436 · Jun 20, 2022(IBM Güvenlik Bildirimi)
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
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-459 · Incomplete CleanupCVSS vector
CVSS:3.1/AV:N/AC:L/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 (9 more)Show less
- git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=64c85430f95200b6b51fe9475bd5203f7c19daf1
- security.gentoo.org/glsa/202210-02
- security.netapp.com/advisory/ntap-20220602-0009/
- www.openssl.org/news/secadv/20220503.txt
- cert-portal.siemens.com/productcert/html/ssa-398330.html
- cert-portal.siemens.com/productcert/html/ssa-419740.html
- cert-portal.siemens.com/productcert/html/ssa-794697.html
- cert-portal.siemens.com/productcert/html/ssa-942865.html
- cert-portal.siemens.com/productcert/html/ssa-953464.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.