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CVE-2009-1387

21
FAUCET Score

CVE-2009-1387 describes a denial-of-service vulnerability in OpenSSL versions prior to 1.0.0 Beta 2, affecting products like Canonical Ubuntu Linux and Red Hat OpenSSL. A remote attacker can trigger a NULL pointer dereference and daemon crash by sending an out-of-sequence DTLS handshake message. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, leading to partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.9.8, < 0.9.8mCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
0.9.6-15CPE matchmatch criteria
cpe:2.3:a:redhat:openssl:0.9.6-15:*:*:*:*:*:*:*
0.9.6b-3CPE matchmatch criteria
cpe:2.3:a:redhat:openssl:0.9.6b-3:*:*:*:*:*:*:*
0.9.7a-2CPE matchmatch criteria
cpe:2.3:a:redhat:openssl:0.9.7a-2:*:*:*:*:*:*:*
6.06CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
10.25%
Probability of exploitation in next 30 days
EPSS Percentile
95.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1025 is in the 94th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: openssl-0:0.9.8e-12.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-1387Moderate

openssl: DTLS out-of-sequence message handling NULL deref DoS

Jun 2, 2009

References

ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc
Broken LinkThird Party Advisory
cvs.openssl.org / chngview
Broken LinkPatchThird Party AdvisoryVendor Advisory
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
Broken LinkThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2009-07/msg00002.html
Third Party Advisory
lists.vmware.com / pipermail/security-announce/2010/000082.html
Mailing ListThird Party Advisory
rt.openssl.org / Ticket/Display.html
Broken LinkPatchThird Party Advisory
secunia.com / advisories/35571
Third Party Advisory
secunia.com / advisories/35685
Third Party Advisory
secunia.com / advisories/35729
Third Party Advisory
secunia.com / advisories/36533
Third Party Advisory
secunia.com / advisories/37003
Third Party Advisory
secunia.com / advisories/38794
Third Party Advisory
secunia.com / advisories/38834
Third Party Advisory
security.gentoo.org / glsa/glsa-200912-01.xml
Third Party Advisory
sourceforge.net / mailarchive/message.php
Broken Link
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10740
Tool Signature
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7592
Tool Signature
voodoo-circle.sourceforge.net / sa/sa-20091012-01.html
Third Party Advisory
openwall.com / lists/oss-security/2009/06/02/1
Mailing ListThird Party Advisory
redhat.com / support/errata/RHSA-2009-1335.html
Third Party Advisory
ubuntu.com / usn/USN-792-1
Third Party Advisory
vupen.com / english/advisories/2010/0528
Permissions RequiredThird Party Advisory