Описание
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c <= 0 can be optimized into a simple c != 0 check. As a result, non-ASCII bytes (e.g., 0x80-0xFF) may bypass the intended range restriction and be used as an index into a global lookup table, causing out-of-bounds access. This vulnerability is fixed in 3.20.1.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/bionic | needs-triage | |
| esm-infra/xenial | needs-triage | |
| jammy | DNE | |
| noble | DNE | |
| plucky | DNE | |
| questing | DNE | |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/noble | needs-triage | |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | needs-triage | |
| jammy | needs-triage | |
| noble | needs-triage | |
| plucky | ignored | end of life, was needs-triage |
| questing | DNE | |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | released | 3.20.2+dfsg-1 |
| jammy | DNE | |
| noble | released | 3.5.1+dfsg1-0ubuntu1.4 |
| plucky | ignored | end of life, was needs-triage |
| questing | released | 3.16.0+dfsg-2ubuntu0.3 |
| upstream | released | 3.20.1 |
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EPSS
9.1 Critical
CVSS3
Связанные уязвимости
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c <= 0 can be optimized into a simple c != 0 check. As a result, non-ASCII bytes (e.g., 0x80-0xFF) may bypass the intended range restriction and be used as an index into a global lookup table, causing out-of-bounds access. This vulnerability is fixed in 3.20.1.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c <= 0 can be optimized into a simple c != 0 check. As a result, non-ASCII bytes (e.g., 0x80-0xFF) may bypass the intended range restriction and be used as an index into a global lookup table, causing out-of-bounds access. This vulnerability is fixed in 3.20.1.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior ...
Уязвимость RDP-клиента FreeRDP, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
9.1 Critical
CVSS3