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CVE-2026-18938

Опубликовано: 07 авг. 2026
Источник: redhat
CVSS3: 6.2
EPSS Низкий

Описание

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10p11-kitNot affected
Red Hat Enterprise Linux 6p11-kitNot affected
Red Hat Enterprise Linux 7p11-kitNot affected
Red Hat Enterprise Linux 8p11-kitNot affected
Red Hat Enterprise Linux 9p11-kitNot affected
Red Hat Hardened Imagesp11-kitNot affected
Red Hat OpenShift Container Platform 4rhcosNot affected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-122
https://bugzilla.redhat.com/show_bug.cgi?id=2478995p11-kit: Integer overflow in RPC attribute-array length calculation can under-allocate nested attribute storage on 32 bit systems

EPSS

Процентиль: 1%
0.00107
Низкий

6.2 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.2
ubuntu
10 дней назад

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.

CVSS3: 6.2
nvd
10 дней назад

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.

CVSS3: 6.2
debian
10 дней назад

A flaw was found in p11-kit. A local attacker, or one with equivalent ...

CVSS3: 6.2
github
10 дней назад

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.

EPSS

Процентиль: 1%
0.00107
Низкий

6.2 Medium

CVSS3

Уязвимость CVE-2026-18938