Bug 2168332 (CVE-2023-23455) - CVE-2023-23455 Kernel: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion
Summary: CVE-2023-23455 Kernel: denial of service in atm_tc_enqueue in net/sched/sch_a...
Keywords:
Status: NEW
Alias: CVE-2023-23455
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2168336 2168337 2168334 2168335
Blocks: 2160440
TreeView+ depends on / blocked
 
Reported: 2023-02-08 18:20 UTC by Rohit Keshri
Modified: 2023-03-28 18:08 UTC (History)
41 users (show)

Fixed In Version: kernel 6.2-rc3
Doc Type: If docs needed, set a value
Doc Text:
A denial of service flaw was found in atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate a TC_ACT_SHOT condition rather than valid classification results.
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Environment:
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Description Rohit Keshri 2023-02-08 18:20:10 UTC 
A denial of service flaw was found in atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel. In this flaw a local attacker may cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2965c7be0522eaa18808684b7b82b248515511b
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