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CVE-2026-34001

Опубликовано: 23 апр. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 7.8

Описание

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.

РелизСтатусПримечание
devel

not-affected

code not present
esm-infra-legacy/xenial

not-affected

code not present
esm-infra/bionic

not-affected

code not present
esm-infra/focal

not-affected

code not present
esm-infra/xenial

not-affected

code not present
jammy

not-affected

code not present
noble

not-affected

code not present
questing

not-affected

code not present
resolute

not-affected

code not present
upstream

not-affected

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra-legacy/xenial

not-affected

code not present
esm-infra/xenial

not-affected

code not present
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

not-affected

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

not-affected

code not present
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

not-affected

Показывать по

РелизСтатусПримечание
devel

not-affected

2:21.1.22-1ubuntu1
esm-infra-legacy/trusty

needs-triage

esm-infra-legacy/xenial

needs-triage

esm-infra/bionic

needs-triage

esm-infra/focal

needs-triage

esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

needs-triage

noble

needs-triage

questing

ignored

end of life, was needs-triage
resolute

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra-legacy/xenial

needs-triage

esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

not-affected

2:24.1.10-1
jammy

needs-triage

noble

needs-triage

questing

ignored

end of life, was needs-triage
resolute

needs-triage

upstream

released

24.1.10

Показывать по

EPSS

Процентиль: 18%
0.00264
Низкий

7.8 High

CVSS3

Связанные уязвимости

CVSS3: 7.8
redhat
3 месяца назад

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.

CVSS3: 7.8
nvd
3 месяца назад

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.

msrc
3 месяца назад

Xorg: xwayland: x.org x server: use-after-free vulnerability leads to server crash and potential memory corruption

CVSS3: 7.8
debian
3 месяца назад

A flaw was found in the X.Org X server. This use-after-free vulnerabil ...

CVSS3: 7.8
github
3 месяца назад

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.

EPSS

Процентиль: 18%
0.00264
Низкий

7.8 High

CVSS3