Metrics
Affected Vendors & Products
Sun, 29 Sep 2024 15:30:00 +0000
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Metrics |
ssvc
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Fri, 20 Sep 2024 17:45:00 +0000
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-416 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:* |
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Vendors & Products |
Linux
Linux linux Kernel |
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Metrics |
cvssV3_1
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cvssV3_1
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Wed, 18 Sep 2024 16:15:00 +0000
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References |
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Metrics |
threat_severity
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cvssV3_1
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Wed, 18 Sep 2024 07:30:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: sch/netem: fix use after free in netem_dequeue If netem_dequeue() enqueues packet to inner qdisc and that qdisc returns __NET_XMIT_STOLEN. The packet is dropped but qdisc_tree_reduce_backlog() is not called to update the parent's q.qlen, leading to the similar use-after-free as Commit e04991a48dbaf382 ("netem: fix return value if duplicate enqueue fails") Commands to trigger KASAN UaF: ip link add type dummy ip link set lo up ip link set dummy0 up tc qdisc add dev lo parent root handle 1: drr tc filter add dev lo parent 1: basic classid 1:1 tc class add dev lo classid 1:1 drr tc qdisc add dev lo parent 1:1 handle 2: netem tc qdisc add dev lo parent 2: handle 3: drr tc filter add dev lo parent 3: basic classid 3:1 action mirred egress redirect dev dummy0 tc class add dev lo classid 3:1 drr ping -c1 -W0.01 localhost # Trigger bug tc class del dev lo classid 1:1 tc class add dev lo classid 1:1 drr ping -c1 -W0.01 localhost # UaF | |
Title | sch/netem: fix use after free in netem_dequeue | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2024-09-18T07:12:54.330Z
Updated: 2024-09-29T14:21:58.260Z
Reserved: 2024-09-11T15:12:18.280Z
Link: CVE-2024-46800
Updated: 2024-09-29T14:21:48.013Z
Status : Analyzed
Published: 2024-09-18T08:15:06.573
Modified: 2024-09-20T17:18:55.260
Link: CVE-2024-46800