PT-2019-3615 · Exim+2 · Exim+2

Areuu

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Publicado

2019-09-27

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Atualizado

2025-02-04

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CVE-2019-16928

CVSS v2.0

10

Crítica

VetorAV:N/AC:L/Au:N/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Exim versions 4.92 through 4.92.2
Description The issue is related to a heap-based buffer overflow in the string vformat function in string.c, which can be exploited by sending a long EHLO command, potentially allowing remote code execution. This vulnerability can be exploited after privilege reset and is limited to code execution with the privileges of the non-privileged user under which the message handler runs.
Recommendations For Exim versions 4.92 through 4.92.2, update to Exim 4.92.3 to resolve the issue. As a temporary workaround, consider restricting access to the EHLO command to minimize the risk of exploitation.

Exploit

Correção

RCE

Buffer Overflow

Memory Corruption

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Enumeração de Fraquezas

Identificadores relacionados

BDU:2019-03829
CVE-2019-16928
DSA-4536-1
OPENSUSE-SU-2021:0677-1
OPENSUSE-SU-2021:0753-1
OPENSUSE-SU-2021:0754-1
OPENSUSE-SU-2021_0677-1
OPENSUSE-SU-2024:10746-1

Produtos afetados

Exim
Suse
Ubuntu