7.8 CVE-2024-53057
Patch
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 iterating over the ingress
qdisc since its parent is itself. The proper fix is to stop when parent
TC_H_ROOT is reached because the only way to retrieve ingress is when a
hierarchy which does not contain a ffff: major handle call into
qdisc_lookup with TC_H_MAJ(TC_H_ROOT).
In the scenario where major ffff: is an egress qdisc in any of the tree
levels, the updates will also propagate to TC_H_ROOT, which then the
iteration must stop.
net/sched/sch_api.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
https://nvd.nist.gov/vuln/detail/CVE-2024-53057
Categories
CWE-416
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67 Patch
CPE
| cpe | start | end |
|---|---|---|
| Configuration 1 | ||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | >= 2.6.25 | < 4.19.323 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | >= 4.20 | < 5.4.285 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | >= 5.5 | < 5.10.229 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | >= 5.11 | < 5.15.171 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | >= 5.16 | < 6.1.116 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | >= 6.2 | < 6.6.60 |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | >= 6.7 | < 6.11.7 |
| cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* | ||
REMEDIATION
Patch
EXPLOITS
Exploit-db.com
| id | description | date | |
|---|---|---|---|
| No known exploits | |||
POC Github
| Url |
|---|
Other Nist (github, ...)
| Url |
|---|
| No known exploits |
CAPEC
Common Attack Pattern Enumerations and Classifications
| id | description | severity |
|---|---|---|
| No entry | ||
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