Описание
A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root.
| Релиз | Статус | Примечание |
|---|---|---|
| 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 |
| 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
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra-legacy/xenial | not-affected | code not present |
| jammy | DNE | |
| noble | DNE | |
| questing | DNE | |
| resolute | DNE | |
| upstream | not-affected |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/bionic | not-affected | code not present |
| jammy | DNE | |
| noble | DNE | |
| questing | DNE | |
| resolute | DNE | |
| upstream | not-affected |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needs-triage | |
| esm-infra-legacy/trusty | needs-triage | |
| esm-infra-legacy/xenial | needs-triage | |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | needs-triage | |
| jammy | needs-triage | |
| noble | needs-triage | |
| questing | ignored | end of life, was needs-triage |
| resolute | needs-triage | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra-legacy/xenial | needs-triage | |
| jammy | DNE | |
| noble | DNE | |
| questing | DNE | |
| resolute | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/bionic | needs-triage | |
| jammy | DNE | |
| noble | DNE | |
| questing | DNE | |
| resolute | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needs-triage | |
| jammy | needs-triage | |
| noble | needs-triage | |
| questing | ignored | end of life, was needs-triage |
| resolute | needs-triage | |
| upstream | released | 2:24.1.12-1 |
Показывать по
EPSS
7.8 High
CVSS3
Связанные уязвимости
A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root.
A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root.
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()
A use-after-free flaw was found in the X.Org X server and Xwayland in ...
A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root.
EPSS
7.8 High
CVSS3