Description
The dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL before 1.0.0 Beta 2 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence DTLS handshake message, related to a "fragment bug."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssl | 0.9.8k-2 | — |
| Debian 13 | openssl | 0.9.8k-2 | — |
| Debian 12 | openssl | 0.9.8k-2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | openssl +2 | 0.9.8e-12.el5 | RHSA-2009:1335 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
Advisories 2
- RHSA-2009:1335 Red Hat Security Advisory: openssl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- openSUSE-SU-2024:11127-1 libopenssl-1_1-devel-1.1.1l-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 38794 third-party-advisory
- [security-announce] 20100303 VMSA-2010-0004 ESX Service Console and vMA third party updates mailing-list
- http://cvs.openssl.org/chngview?cn=17958
- 35729 third-party-advisory
- GLSA-200912-01 vendor-advisory
- [oss-security] 20090602 Re: Two OpenSSL DTLS remote DoS mailing-list
- RHSA-2009:1335 vendor-advisory
- HPSBMA02492 vendor-advisory
- 37003 third-party-advisory
- 36533 third-party-advisory
- USN-792-1 vendor-advisory
- http://rt.openssl.org/Ticket/Display.html?id=1838&user=guest&pass=guest
- oval:org.mitre.oval:def:7592 vdb-entry signature
- http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html
- 38834 third-party-advisory
- 35685 third-party-advisory
- 35571 third-party-advisory
- SUSE-SR:2009:012 vendor-advisory
- oval:org.mitre.oval:def:10740 vdb-entry signature
- http://sourceforge.net/mailarchive/message.php?msg_name=4AD43807.7080105%40users.sourceforge.net
- ADV-2010-0528 vdb-entry