OpenSSL dtls1_retrieve_buffered_fragment denial of service
| openssl-dtls1retrievebufferedfragment-dos (50661) |  Low Risk |
Description:
OpenSSL is vulnerable to a denial of service, caused by a use-after-free vulnerability in the dtls1_retrieve_buffered_fragment function. By sending a specially-crafted DTLS packet, a remote attacker could exploit this vulnerability to cause the application to crash.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 4.4 |
| Exploitability: | High |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Apply the patch for this vulnerability (retrieve_buffered_fragment.patch), available from RT for openssl.org ticket #1923. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- OpenSSL Web site: OpenSSL.
- oss-security Mailing List, Mon, 18 May 2009 19:50:54 +0100 (BST): Re: Two OpenSSL DTLS remote DoS.
- RT for openssl.org ticket #1923: dtls1_retrieve_buffered_fragment: Read from freed data structure.
- Voodoo-circle-security: Vulnerability report: VooDoo cIRCle 1.1.37 released [UPDATE].
- BID-35138: OpenSSL 'dtls1_retrieve_buffered_fragment()' DTLS Packet Denial of Service Vulnerability
- CVE-2009-1379: Use-after-free vulnerability in the dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL 1.0.0 Beta 2 allows remote attackers to cause a denial of service (openssl s_client crash) and possibly have unspecified other impact via a DTLS packet, as demonstrated by a packet from a server that uses a crafted server certificate.
- DSA-1888: openssl097 -- cryptographic weakness
- GLSA-200912-01: OpenSSL: Multiple vulnerabilities
- MDVSA-2009:238: openssl
- MDVSA-2009:310: openssl
- RHSA-2009-1335: Moderate: openssl security, bug fix, and enhancement update
- SA37003: VooDoo cIRCle OpenSSL DTLS Denial of Service Vulnerabilities
- SECTRACK ID: 1022241: OpenSSL DTLS Processing Bugs Let Users Deny Service
- SUSE-SR:2009:011: SUSE Security Summary Report
- USN-792-1: OpenSSL vulnerabilities
- VUPEN/ADV-2009-1377: OpenSSL DTLS Data Handling Remote Denial of Service Vulnerabilities
Platforms Affected:
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 8.04 LTS
- Canonical Ubuntu 8.10
- Debian Debian Linux 4.0
- Debian Debian Linux 5.0
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- MandrakeSoft Mandrake Linux 2008.0
- MandrakeSoft Mandrake Linux 2008.1
- MandrakeSoft Mandrake Linux 2008.1 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- Mandriva Linux 2009.0 X86_64
- Mandriva Linux 2009.0
- OpenSSL OpenSSL 1.0.0 Beta2
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
- VooDoo cIRCLe 1.1.36
Reported:
May 11, 2009
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.