MEDIUM
openssl: crash caused by a missing krb5_sname_to_principal() return value check
Published Mar 5, 2010
4.3
MEDIUMCVSS 2.0
EPSS 7.86%
Description
The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot.
Affected products
No data.
OR
- ≤ 0.9.8m
- 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
No data.
Red Hat Enterprise Linux 5
openssl-0:0.9.8e-12.el5_4.6
Fixed · RHSA-2010:0162
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | openssl-0:0.9.8e-12.el5_4.6 | Fixed | RHSA-2010:0162 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
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.
7.86% 0.07857
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.07857
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 (42 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.86% (0.07857) | 94.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.86% (0.07857) | 93.92th | v5 (v2026.06.15) |
| Mar 4, 2026 | 17.27% (0.17272) | 94.91th | v4 (v2025.03.14) |
| Mar 1, 2026 | 4.18% (0.04179) | 88.54th | v4 (v2025.03.14) |
| Feb 4, 2026 | 17.27% (0.17272) | 94.84th | v4 (v2025.03.14) |
| Feb 1, 2026 | 4.18% (0.04179) | 88.47th | v4 (v2025.03.14) |
| Jan 4, 2026 | 17.27% (0.17272) | 94.81th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.18% (0.04179) | 88.41th | v4 (v2025.03.14) |
| Dec 28, 2025 | 17.27% (0.17272) | 94.81th | v4 (v2025.03.14) |
| Dec 27, 2025 | 16.13% (0.16128) | 94.61th | v4 (v2025.03.14) |
| Dec 7, 2025 | 17.27% (0.17272) | 94.78th | v4 (v2025.03.14) |
| Dec 4, 2025 | 11.19% (0.11189) | 93.21th | v4 (v2025.03.14) |
| Dec 1, 2025 | 2.66% (0.02655) | 85.34th | v4 (v2025.03.14) |
| Nov 4, 2025 | 11.19% (0.11189) | 93.17th | v4 (v2025.03.14) |
| Nov 1, 2025 | 2.66% (0.02655) | 85.29th | v4 (v2025.03.14) |
| Oct 4, 2025 | 11.19% (0.11189) | 93.21th | v4 (v2025.03.14) |
| Oct 1, 2025 | 2.66% (0.02655) | 85.28th | v4 (v2025.03.14) |
| Sep 4, 2025 | 10.53% (0.10532) | 92.99th | v4 (v2025.03.14) |
| Sep 1, 2025 | 3.00% (0.03002) | 86.13th | v4 (v2025.03.14) |
| Aug 4, 2025 | 10.53% (0.10532) | 92.95th | v4 (v2025.03.14) |
| Aug 1, 2025 | 3.00% (0.03002) | 86.15th | v4 (v2025.03.14) |
| Jul 16, 2025 | 11.19% (0.11189) | 93.17th | v4 (v2025.03.14) |
| Jul 4, 2025 | 17.77% (0.17765) | 94.81th | v4 (v2025.03.14) |
| Jul 1, 2025 | 4.45% (0.04446) | 88.61th | v4 (v2025.03.14) |
| Jun 4, 2025 | 17.77% (0.17765) | 94.76th | v4 (v2025.03.14) |
| Jun 1, 2025 | 4.45% (0.04446) | 88.53th | v4 (v2025.03.14) |
| May 4, 2025 | 17.77% (0.17765) | 94.72th | v4 (v2025.03.14) |
| May 1, 2025 | 4.45% (0.04446) | 88.46th | v4 (v2025.03.14) |
| Apr 12, 2025 | 17.77% (0.17765) | 94.60th | v4 (v2025.03.14) |
| Apr 11, 2025 | 4.45% (0.04446) | 88.06th | v4 (v2025.03.14) |
| Mar 30, 2025 | 17.77% (0.17765) | 94.59th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.74% (0.10738) | 88.83th | v4 (v2025.03.14) |
| Mar 28, 2025 | 17.77% (0.17765) | 94.59th | v4 (v2025.03.14) |
| Mar 27, 2025 | 5.92% (0.05917) | 89.24th | v4 (v2025.03.14) |
| Mar 22, 2025 | 17.77% (0.17765) | 94.64th | v4 (v2025.03.14) |
| Mar 21, 2025 | 5.92% (0.05917) | 89.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 17.77% (0.17765) | 94.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 8.02% (0.08016) | 94.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 8.02% (0.08016) | 93.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | 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 (34)
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory.asc x_refsource_CONFIRM
- http://cvs.openssl.org/chngview?cn=19374 x_refsource_CONFIRM
- http://groups.google.com/group/mailing.openssl.users/browse_thread/thread/c3e1ab0034ca4b4c/66aa896c3a78b2f7 x_refsource_MISC
- http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038587.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2010-April/039561.html vendor-advisoryx_refsource_FEDORA
- http://marc.info/?l=bugtraq&m=127128920008563&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=127557640302499&w=2 vendor-advisoryx_refsource_HP
- http://secunia.com/advisories/39461 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/39932 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/42724 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/42733 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/43311 third-party-advisoryx_refsource_SECUNIA
- http://www.mail-archive.com/dovecot%40dovecot.org/msg26224.html mailing-listx_refsource_MLIST
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:076 vendor-advisoryx_refsource_MANDRIVA
- http://www.openssl.org/news/changelog.html x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2010/03/03/5 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/archive/1/516397/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html x_refsource_CONFIRM
- http://www.vmware.com/support/vsphere4/doc/vsp_vc41_u1_rel_notes.html x_refsource_CONFIRM
- http://www.vupen.com/english/advisories/2010/0839 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2010/0916 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2010/0933 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2010/1216 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2010-0433 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=567711 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=569774 x_refsource_CONFIRMIssue Tracking
- https://kb.bluecoat.com/index?page=content&id=SA50 x_refsource_CONFIRM
- https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000101.html mailing-listx_refsource_MLIST
- https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000102.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2010-0433
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12260 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6718 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9856 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2010-0433
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Mar 5, 2010
Updated Aug 7, 2024
Reserved Jan 27, 2010
Link CVE-2010-0433
CISA Vulnrichment
Updated n/a