MEDIUM
openssl: Server Name extension crash
Published May 29, 2008
4.3
MEDIUMCVSS 2.0
EPSS 4.23%
Description
Double free vulnerability in OpenSSL 0.9.8f and 0.9.8g, when the TLS server name extensions are enabled, allows remote attackers to cause a denial of service (crash) via a malformed Client Hello packet. NOTE: some of these details are obtained from third party information.
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of OpenSSL 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.
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.
4.23% 0.04230
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.04230
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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.23% (0.04230) | 90.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.56% (0.04559) | 90.35th | v5 (v2026.06.15) |
| Jan 28, 2026 | 11.28% (0.11276) | 93.33th | v4 (v2025.03.14) |
| Dec 28, 2025 | 12.83% (0.12826) | 93.79th | v4 (v2025.03.14) |
| Dec 27, 2025 | 13.98% (0.13977) | 94.14th | v4 (v2025.03.14) |
| Oct 28, 2025 | 12.83% (0.12826) | 93.71th | v4 (v2025.03.14) |
| Oct 27, 2025 | 13.98% (0.13977) | 94.06th | v4 (v2025.03.14) |
| Oct 1, 2025 | 12.83% (0.12826) | 93.81th | v4 (v2025.03.14) |
| Jul 30, 2025 | 13.98% (0.13977) | 94.04th | v4 (v2025.03.14) |
| Apr 26, 2025 | 12.83% (0.12826) | 93.60th | v4 (v2025.03.14) |
| Mar 30, 2025 | 10.51% (0.10511) | 92.55th | v4 (v2025.03.14) |
| Mar 29, 2025 | 20.67% (0.20670) | 92.81th | v4 (v2025.03.14) |
| Mar 17, 2025 | 10.51% (0.10511) | 92.69th | v4 (v2025.03.14) |
| Feb 23, 2025 | 14.51% (0.14509) | 95.83th | v3 (v2023.03.01) |
| Dec 12, 2024 | 13.36% (0.13357) | 95.80th | v3 (v2023.03.01) |
| Nov 8, 2023 | 13.22% (0.13217) | 94.98th | v3 (v2023.03.01) |
| Sep 26, 2023 | 11.92% (0.11924) | 94.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 11.16% (0.11156) | 94.21th | 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 (26)
- http://cert.fi/haavoittuvuudet/2008/advisory-openssl.html x_refsource_MISC
- http://secunia.com/advisories/30405 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/30460 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30825 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30852 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30868 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/31228 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/31288 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200806-08.xml vendor-advisoryx_refsource_GENTOO
- http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.562004 vendor-advisoryx_refsource_SLACKWARE
- http://sourceforge.net/project/shownotes.php?release_id=615606 x_refsource_CONFIRM
- http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=738400 x_refsource_MISC
- http://www.kb.cert.org/vuls/id/661475 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:107 vendor-advisoryx_refsource_MANDRIVA
- http://www.openssl.org/news/secadv_20080528.txt x_refsource_CONFIRM
- http://www.securityfocus.com/bid/29405 vdb-entryx_refsource_BIDPatch
- http://www.securitytracker.com/id?1020121 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/usn-620-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2008/1680 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2008/1937/references vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2008-0891 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=448492 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42666 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2008-0891
- https://www.cve.org/CVERecord?id=CVE-2008-0891
- https://www.redhat.com/archives/fedora-package-announce/2008-May/msg01029.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published May 29, 2008
Updated Aug 7, 2024
Reserved Feb 21, 2008
Link CVE-2008-0891
CISA Vulnrichment
Updated n/a