Описание
FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needs-triage | |
| esm-apps-legacy/xenial | needs-triage | |
| esm-apps/bionic | needs-triage | |
| esm-apps/focal | released | 7:4.2.7-0ubuntu0.1+esm17 |
| esm-apps/jammy | released | 7:4.4.2-0ubuntu0.22.04.1+esm16 |
| esm-apps/noble | needs-triage | |
| esm-apps/resolute | needs-triage | |
| jammy | needed | |
| noble | needs-triage | |
| questing | ignored | end of life, was needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra-legacy/trusty | needs-triage | |
| jammy | DNE | |
| noble | DNE | |
| questing | DNE | |
| resolute | DNE | |
| upstream | needs-triage |
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Ссылки на источники
EPSS
8.6 High
CVSS3
Связанные уязвимости
FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption.
FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption.
FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) perform ...
FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption.
Уязвимость функции decode_dlta() файла libavcodec/rasc.c видеодекодера RASC мультимедийной библиотеки FFmpeg, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
8.6 High
CVSS3