MEDIUM
OpenSSL before 0.9.8k on WIN64 and certain other platforms does not properly handle a malformed ASN.1 structure, which allows remote attackers to cause a denial of service (invalid memory access and application crash) by placing this structure in the public key of a certificate, as demonstrated by an RSA public key
Published Mar 27, 2009
5.0
MEDIUMCVSS 2.0
EPSS 2.59%
Description
OpenSSL before 0.9.8k on WIN64 and certain other platforms does not properly handle a malformed ASN.1 structure, which allows remote attackers to cause a denial of service (invalid memory access and application crash) by placing this structure in the public key of a certificate, as demonstrated by an RSA public key.
Affected products
No data.
OR
- ≤ 0.9.8j
- 0.9.1c
- 0.9.2b
- 0.9.3
- 0.9.3a
- 0.9.4
- 0.9.5
- 0.9.5
- 0.9.5
- 0.9.5a
- 0.9.5a
- 0.9.5a
- 0.9.6
- 0.9.6
- 0.9.6
- 0.9.6
- 0.9.6a
- 0.9.6a
- 0.9.6a
- 0.9.6a
- 0.9.6b
- 0.9.6c
- 0.9.6d
- 0.9.6e
- 0.9.6f
- 0.9.6g
- 0.9.6h
- 0.9.6i
- 0.9.6j
- 0.9.6k
- 0.9.6l
- 0.9.6m
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7a
- 0.9.7b
- 0.9.7c
- 0.9.7d
- 0.9.7e
- 0.9.7f
- 0.9.7g
- 0.9.7h
- 0.9.7i
- 0.9.7j
- 0.9.7k
- 0.9.7l
- 0.9.7m
- 0.9.8
- 0.9.8a
- 0.9.8b
- 0.9.8c
- 0.9.8d
- 0.9.8e
- 0.9.8f
- 0.9.8g
- 0.9.8h
- 0.9.8i
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue only affects a small number of operating systems and does not affect the openssl packages as shipped with Red Hat Enterprise Linux 2.1, 3, 4 or 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.59% 0.02590
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02590
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.59% (0.02590) | 84.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.59% (0.02590) | 83.22th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.73% (0.02727) | 84.66th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.63% (0.05628) | 83.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.73% (0.02727) | 84.97th | v4 (v2025.03.14) |
| Dec 17, 2024 | 10.50% (0.10503) | 95.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 11.67% (0.11669) | 94.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | v2 (v2022.01.01) |
| Jul 18, 2022 | 7.56% (0.07559) | 92.47th | v2 (v2022.01.01) |
| Jul 17, 2022 | 4.36% (0.04358) | 87.36th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.56% (0.07559) | 92.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.56% (0.07559) | 81.11th | v2 (v2022.01.01) |
Weaknesses (1)
References (33)
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-008.txt.asc vendor-advisoryx_refsource_NETBSD
- http://lists.apple.com/archives/security-announce/2009/Sep/msg00004.html vendor-advisoryx_refsource_APPLE
- http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=124464882609472&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=127678688104458&w=2 vendor-advisoryx_refsource_HP
- http://secunia.com/advisories/34411 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/34460 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/34666 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35065 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35380 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/35729 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36701 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/42724 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/42733 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://securitytracker.com/id?1021906 vdb-entryx_refsource_SECTRACK
- http://sourceforge.net/project/shownotes.php?release_id=671059&group_id=116847 x_refsource_CONFIRM
- http://support.apple.com/kb/HT3865 x_refsource_CONFIRM
- http://voodoo-circle.sourceforge.net/sa/sa-20090326-01.html x_refsource_CONFIRM
- http://www.openssl.org/news/secadv_20090325.txt x_refsource_CONFIRMVendor Advisory
- http://www.osvdb.org/52866 vdb-entryx_refsource_OSVDB
- http://www.php.net/archive/2009.php#id2009-04-08-1 x_refsource_CONFIRM
- http://www.securityfocus.com/bid/34256 vdb-entryx_refsource_BIDPatch
- http://www.vupen.com/english/advisories/2009/0850 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/1020 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/1175 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/1548 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2009-0789 Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49433 vdb-entryx_refsource_XF
- https://kb.bluecoat.com/index?page=content&id=SA50 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2009-0789
- https://www.cve.org/CVERecord?id=CVE-2009-0789
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Mar 27, 2009
Updated Aug 7, 2024
Reserved Mar 4, 2009
Link CVE-2009-0789
CISA Vulnrichment
Updated n/a