PT-2014-1924 · Freedesktop.Org+2 · D-Bus+2
Simon Mcvittie
·
Publicado
2014-09-17
·
Atualizado
2024-06-15
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CVE-2014-3635
CVSS v2.0
6.8
Média
| Vetor | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
D-Bus versions 1.3.0 through 1.6.x before 1.6.24
D-Bus versions 1.8.x before 1.8.8
Description
The issue is caused by an off-by-one error when running on a 64-bit system and the max message unix fds limit is set to an odd number. This allows local users to cause a denial of service (dbus-daemon crash) or possibly execute arbitrary code by sending one more file descriptor than the limit, which triggers a heap-based buffer overflow or an assertion failure. The vulnerability can be exploited to compromise the confidentiality, integrity, and availability of protected information.
Recommendations
For D-Bus versions 1.3.0 through 1.6.x before 1.6.24, update to version 1.6.24 or later to resolve the issue.
For D-Bus versions 1.8.x before 1.8.8, update to version 1.8.8 or later to resolve the issue.
As a temporary workaround, consider setting the max message unix fds limit to an even number to prevent the off-by-one error.
Correção
DoS
Buffer Overflow
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
D-Bus
Ubuntu