CVE-2024-53057 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV8.8OSV5.5OSV4.7
EPSS
0.0%
top 97.17%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 19
Latest updateAug 14
Description
In the Linux kernel, the following vulnerability has been resolved:
net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT
In qdisc_tree_reduce_backlog, Qdiscs with major handle ffff: are assumed
to be either root or ingress. This assumption is bogus since it's valid
to create egress qdiscs with major handle ffff:
Budimir Markovic found that for qdiscs like DRR that maintain an active
class list, it will cause a UAF with a dangling class pointer.
In 066a3b5b2346, the concern was to avoid iter…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9