{"uuid": "c1455dcf-983e-4603-a22e-b2551ebdfbac", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2022-48923", "type": "seen", "source": "https://t.me/cvedetector/3852", "content": "{\n  \"Source\": \"CVE FEED\",\n  \"Title\": \"CVE-2022-48923 - Btrfs LZO Decompression Off-Path Information Disclosure\", \n  \"Content\": \"CVE ID : CVE-2022-48923 \nPublished : Aug. 22, 2024, 2:15 a.m. | 37\u00a0minutes ago \nDescription : In the Linux kernel, the following vulnerability has been resolved:  \n  \nbtrfs: prevent copying too big compressed lzo segment  \n  \nCompressed length can be corrupted to be a lot larger than memory  \nwe have allocated for buffer.  \nThis will cause memcpy in copy_compressed_segment to write outside  \nof allocated memory.  \n  \nThis mostly results in stuck read syscall but sometimes when using  \nbtrfs send can get #GP  \n  \n  kernel: general protection fault, probably for non-canonical address 0x841551d5c1000: 0000 [#1] PREEMPT SMP NOPTI  \n  kernel: CPU: 17 PID: 264 Comm: kworker/u256:7 Tainted: P           OE     5.17.0-rc2-1 #12  \n  kernel: Workqueue: btrfs-endio btrfs_work_helper [btrfs]  \n  kernel: RIP: 0010:lzo_decompress_bio (./include/linux/fortify-string.h:225 fs/btrfs/lzo.c:322 fs/btrfs/lzo.c:394) btrfs  \n  Code starting with the faulting instruction  \n  ===========================================  \n     0:*  48 8b 06                mov    (%rsi),%rax                \n  kernel: end_compressed_bio_read (fs/btrfs/compression.c:104 fs/btrfs/compression.c:1363 fs/btrfs/compression.c:323) btrfs  \n  kernel: end_workqueue_fn (fs/btrfs/disk-io.c:1923) btrfs  \n  kernel: btrfs_work_helper (fs/btrfs/async-thread.c:326) btrfs  \n  kernel: process_one_work (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:212 ./include/trace/events/workqueue.h:108 kernel/workqueue.c:2312)  \n  kernel: worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2455)  \n  kernel: ? process_one_work (kernel/workqueue.c:2397)  \n  kernel: kthread (kernel/kthread.c:377)  \n  kernel: ? kthread_complete_and_exit (kernel/kthread.c:332)  \n  kernel: ret_from_fork (arch/x86/entry/entry_64.S:301)  \n  kernel: \nSeverity: 0.0 | NA \nVisit the link for more details, such as CVSS details, affected products, timeline, and more...\",\n  \"Detection Date\": \"22 Aug 2024\",\n  \"Type\": \"Vulnerability\"\n}\n\ud83d\udd39 t.me/cvedetector \ud83d\udd39", "creation_timestamp": "2024-08-22T05:07:52.000000Z"}