Buffer overflow in OpenSSL

1) Buffer overflow

EUVDB-ID: #VU33337

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2009-1377

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The dtls1_buffer_record function in ssl/d1_pkt.c in OpenSSL 0.9.8k and earlier 0.9.8 versions allows remote attackers to cause a denial of service (memory consumption) via a large series of "future epoch" DTLS records that are buffered in a queue, aka "DTLS record buffer limitation bug."

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenSSL: 0.9.0b - 0.9.8k

External links

http:ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc
http://cvs.openssl.org/chngview?cn=18187
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html
http://lists.vmware.com/pipermail/security-announce/2010/000082.html
http://marc.info/?l=openssl-dev&m=124247675613888&w=2
http://rt.openssl.org/Ticket/Display.html?id=1930&user=guest&pass=guest
http://secunia.com/advisories/35128
http://secunia.com/advisories/35416
http://secunia.com/advisories/35461
http://secunia.com/advisories/35571
http://secunia.com/advisories/35729
http://secunia.com/advisories/36533
http://secunia.com/advisories/37003
http://secunia.com/advisories/38761
http://secunia.com/advisories/38794
http://secunia.com/advisories/38834
http://secunia.com/advisories/42724
http://secunia.com/advisories/42733
http://security.gentoo.org/glsa/glsa-200912-01.xml
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049
http://sourceforge.net/mailarchive/message.php?msg_name=4AD43807.7080105%40users.sourceforge.net
http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html
http://www.mandriva.com/security/advisories?name=MDVSA-2009:120
http://www.openwall.com/lists/oss-security/2009/05/18/1
http://www.redhat.com/support/errata/RHSA-2009-1335.html
http://www.securityfocus.com/bid/35001
http://www.securitytracker.com/id?1022241
http://www.ubuntu.com/usn/USN-792-1
http://www.vupen.com/english/advisories/2009/1377
http://www.vupen.com/english/advisories/2010/0528
http://kb.bluecoat.com/index?page=content&id=SA50
http://launchpad.net/bugs/cve/2009-1377
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6683
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9663

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.