Описание
OpenLDAP Lightning Memory-Mapped Database (LMDB) mdb_load contains a heap buffer underflow vulnerability in the readline() function. When processing malformed input, an unsigned offset calculation can underflow a heap pointer, resulting in an out-of-bounds read of one byte before the allocated heap buffer. This may allow a local attacker to cause a denial of service and potentially disclose limited heap memory contents.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needs-triage | |
| esm-apps/bionic | needs-triage | |
| esm-apps/xenial | needs-triage | |
| esm-infra-legacy/trusty | needs-triage | |
| esm-infra/focal | needs-triage | |
| jammy | needs-triage | |
| noble | needs-triage | |
| plucky | needs-triage | |
| questing | needs-triage | |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | code not compiled |
| esm-infra-legacy/trusty | not-affected | code not compiled |
| esm-infra/bionic | not-affected | code not compiled |
| esm-infra/focal | not-affected | code not compiled |
| esm-infra/xenial | not-affected | code not compiled |
| jammy | not-affected | code not compiled |
| noble | not-affected | code not compiled |
| plucky | not-affected | code not compiled |
| questing | not-affected | code not compiled |
| upstream | needs-triage |
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Связанные уязвимости
OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline() function of mdb_load. When processing malformed input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause an out-of-bounds read of one byte before the allocated heap buffer. This can cause mdb_load to crash, leading to a limited denial-of-service condition.
OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and in ...
OpenLDAP Lightning Memory-Mapped Database (LMDB) mdb_load contains a heap buffer underflow vulnerability in the readline() function. When processing malformed input, an unsigned offset calculation can underflow a heap pointer, resulting in an out-of-bounds read of one byte before the allocated heap buffer. This may allow a local attacker to cause a denial of service and potentially disclose limited heap memory contents.