PT-2015-5857 · Mozilla+4 · Thunderbird+7
Karthikeyan Bhargavan
·
Publicado
2015-06-25
·
Atualizado
2024-12-12
·
CVE-2015-2721
CVSS v2.0
4.3
Média
| Vetor | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Name of the Vulnerable Software and Affected Versions
Mozilla Network Security Services (NSS) versions prior to 3.19
Mozilla Firefox versions prior to 39.0
Firefox ESR versions 31.x prior to 31.8
Firefox ESR versions 38.x prior to 38.1
Thunderbird versions prior to 38.1
Description
The issue is related to the TLS state machine, where state transitions are not properly determined, allowing man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages. This can be demonstrated by removing a forward-secrecy property by blocking a
ServerKeyExchange message, also known as a "SMACK SKIP-TLS" issue.Recommendations
For Mozilla Network Security Services (NSS) versions prior to 3.19, update to version 3.19 or later.
For Mozilla Firefox versions prior to 39.0, update to version 39.0 or later.
For Firefox ESR versions 31.x prior to 31.8, update to version 31.8 or later.
For Firefox ESR versions 38.x prior to 38.1, update to version 38.1 or later.
For Thunderbird versions prior to 38.1, update to version 38.1 or later.
Exploit
Correção
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Centos
Firefox
Firefox Esr
Network Security Services
Red Hat
Suse
Thunderbird
Ubuntu