| Package | Affected versions | Patched versions |
|---|---|---|
| haproxy | ≥ 2.5, < 2.6.30≥ 2.7, < 2.8.25≥ 2.9, < 3.0.24≥ 3.1, < 3.2.20≥ 3.3, < 3.4.1< 2.4.36 | 2.6.302.8.253.0.243.2.203.4.12.4.36 |
HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memory pressure to dereference a NULL pointer and crash HAProxy worker processes, causing denial of service.
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