CVSS 7.0 · High EPSS 0,15%
Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada linux kernel, debian linux. Skor CVSS 3.1 7.0 (High) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: fix a race in ets_qdisc_change() Gerrard Tai reported a race condition in ETS, whenever SFQ perturb timer fires at the wrong time. The race is as follows: CPU 0 CPU 1 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put() This can be abused to underflow a parent's qlen. Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 5.4.213 hingga sebelum 5.5 |
| linux | linux kernel | Versi 5.10.142 hingga sebelum 5.10.239 |
| linux | linux kernel | Versi 5.15.66 hingga sebelum 5.15.186 |
| linux | linux kernel | Versi 5.19.8 hingga sebelum 6.0 |
| linux | linux kernel | Versi 6.0.1 hingga sebelum 6.1.142 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.6.94 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.12.34 |
| linux | linux kernel | Versi 6.13 hingga sebelum 6.15.3 |
| linux | linux kernel | Versi 6.0 |
| linux | linux kernel | Versi 6.0 rc4 |
| linux | linux kernel | Versi 6.0 rc5 |
| linux | linux kernel | Versi 6.0 rc6 |
| linux | linux kernel | Versi 6.0 rc7 |
| linux | linux kernel | Versi 6.16 rc1 |
| debian | debian linux | Versi 11.0 |