Описание
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities. The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation. The read may disclose adjacent heap contents into the destination SV.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 3.83-2 |
| esm-infra-legacy/trusty | needs-triage | |
| esm-infra-legacy/xenial | needs-triage | |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | needs-triage | |
| jammy | released | 3.76-1ubuntu0.1 |
| noble | released | 3.81-1ubuntu0.1 |
| questing | ignored | end of life, was needs-triage |
| resolute | released | 3.83-1ubuntu0.1 |
| upstream | released | 3.84,3.83-2 |
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7.5 High
CVSS3
Связанные уязвимости
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities. The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation. The read may disclose adjacent heap contents into the destination SV.
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities
HTML::Entities versions before 3.84 for Perl read freed heap memory in ...
7.5 High
CVSS3