PT-2023-2769 · Ntp+5 · Ntp+5
Rma-Xo
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Publicado
2023-04-11
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Atualizado
2024-11-28
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CVE-2023-26554
CVSS v3.1
5.6
Média
| Vetor | AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
Name of the Vulnerable Software and Affected Versions
NTP versions 4.2.8p15
Description
The issue is related to an out-of-bounds write in the
mstolfp() function in libntp/mstolfp.c when adding a '0' character. This can be exploited by a remote attacker to potentially execute arbitrary code by sending a specially crafted request to the server. The vulnerability affects the ntpq process, but not ntpd. It can also cause a denial of service.Recommendations
For NTP version 4.2.8p15, consider disabling the
mstolfp() function in libntp/mstolfp.c as a temporary workaround until a patch is available. Restrict access to the ntpq process to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
DoS
Memory Corruption
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Astra Linux
Debian
Ibm Aix
Ntp
Suse