openssl: invalid GOST parameters DoS attack
Published Jan 6, 2012
5.0
MEDIUMCVSS 2.0
EPSS 4.81%
Description
The GOST ENGINE in OpenSSL before 1.0.0f does not properly handle invalid parameters for the GOST block cipher, which allows remote attackers to cause a denial of service (daemon crash) via crafted data from a TLS client.
Affected products
No data.
- ≤ 1.0.0e
- 0.9.1c
- 0.9.2b
- 0.9.3
- 0.9.3a
- 0.9.4
- 0.9.5
- 0.9.5a
- 0.9.6
- 0.9.6a
- 0.9.6b
- 0.9.6c
- 0.9.6d
- 0.9.6e
- 0.9.6f
- 0.9.6g
- 0.9.6h
- 0.9.6h
- 0.9.6i
- 0.9.6j
- 0.9.6k
- 0.9.6l
- 0.9.6m
- 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
- 0.9.8j
- 0.9.8k
- 0.9.8l
- 0.9.8m
- 0.9.8n
- 0.9.8o
- 0.9.8p
- 0.9.8q
- 0.9.8r
- 0.9.8s
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0a
- 1.0.0b
- 1.0.0c
- 1.0.0d
No data.
Red Hat Enterprise Linux 4
openssl
Not affected
Red Hat Enterprise Linux 4
openssl096b
Not affected
Red Hat Enterprise Linux 5
openssl
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
openssl
Not affected
Red Hat Enterprise Linux 6
openssl098e
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 4 | openssl096b | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of openssl as shipped with Red Hat Enterprise Linux 3, 4, 5 and 6, as they did not include GOST engine support.
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.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 | 4.81% (0.04812) | 91.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.99% (0.04992) | 91.08th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.10% (0.01103) | 76.08th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.82% (0.02816) | 76.90th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.30% (0.01302) | 78.37th | v4 (v2025.03.14) |
| Dec 17, 2024 | 6.96% (0.06959) | 93.87th | v3 (v2023.03.01) |
| Jun 2, 2023 | 5.19% (0.05190) | 91.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 9.80% (0.09799) | 93.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
References (11)
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 vendor-advisoryx_refsource_HP
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00017.html vendor-advisoryx_refsource_SUSE
- http://osvdb.org/78191 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/57353 third-party-advisoryx_refsource_SECUNIA
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:007 vendor-advisoryx_refsource_MANDRIVA
- http://www.openssl.org/news/secadv_20120104.txt x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2012-0027 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=771782 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-0027
- https://www.cve.org/CVERecord?id=CVE-2012-0027
| Link | Providers | Tags |
|---|---|---|
| http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 | vendor-advisoryx_refsource_HP | |
| http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00017.html | vendor-advisoryx_refsource_SUSE | |
| http://osvdb.org/78191 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/57353 | third-party-advisoryx_refsource_SECUNIA | |
| http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564 | x_refsource_CONFIRM | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:007 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.openssl.org/news/secadv_20120104.txt | x_refsource_CONFIRMVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2012-0027 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=771782 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-0027 | ||
| https://www.cve.org/CVERecord?id=CVE-2012-0027 |
Change history (0)
No recorded changes yet.