National Cyber-Alert System
Vulnerability Summary for CVE-2009-1378
Original release date:05/19/2009
Last revised:07/15/2009
Source:
US-CERT/NIST
Overview
Multiple memory leaks in the dtls1_process_out_of_seq_message function in ssl/d1_both.c in OpenSSL 0.9.8k and earlier 0.9.8 versions allow remote attackers to cause a denial of service (memory consumption) via DTLS records that (1) are duplicates or (2) have sequence numbers much greater than current sequence numbers, aka "DTLS fragment handling memory leak."
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
- Official Statement from Red Hat (06/02/2009)
-
This issue did not affect versions of openssl as shipped in Red Hat Enterprise Linux 3 and 4.
This issue affects openssl version as shipped in Red Hat Enterprise Linux 5 and it will be addressed in the openssl packages update in Red Hat Enterprise Linux 5.4. There is no update planned before than, as both DTLS specification and OpenSSLs implementation is still in development and unlikely to be used in production environments. There is no component shipped in Red Hat Enterprise Linux 5 using OpenSSLs DTLS implementation, except for OpenSSLs testing command line client - openssl.
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: http://rt.openssl.org/Ticket/Display.html?id=1931&user=guest&pass=guest
Type: Patch Information
External Source: MLIST
Name: [openssl-dev] 20090516 [openssl.org #1931] [PATCH] DTLS fragment handling memory leak
Type: Patch Information
External Source: CONFIRM
Name: http://cvs.openssl.org/chngview?cn=18188
Type: Patch Information
External Source: MISC
Name: https://launchpad.net/bugs/cve/2009-1378
External Source: VUPEN
Name: ADV-2009-1377
External Source: UBUNTU
Name: USN-792-1
External Source: SECTRACK
Name: 1022241
External Source: BID
Name: 35001
External Source: MLIST
Name: [oss-security] 20090518 Two OpenSSL DTLS remote DoS
External Source: MILW0RM
Name: 8720
External Source: MANDRIVA
Name: MDVSA-2009:120
External Source: SECUNIA
Name: 35729
External Source: SECUNIA
Name: 35571
External Source: SECUNIA
Name: 35461
External Source: SECUNIA
Name: 35416
External Source: SECUNIA
Name: 35128
Type: Advisory
External Source: MLIST
Name: [openssl-dev] 20090518 Re: [openssl.org #1931] [PATCH] DTLS fragment handling memory leak
External Source: SUSE
Name: SUSE-SR:2009:011
External Source: NETBSD
Name: NetBSD-SA2009-009
