CVE-2022-48627— vt: fix memory overlapping when deleting chars in the buffer
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 14
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 81732c3b2fede049a692e58a7ceabb6d18ffb18c< c8686c014b5e872ba7e334f33ca553f14446fc29 | affected |
81732c3b2fede049a692e58a7ceabb6d18ffb18c< 815be99d934e3292906536275f2b8d5131cdf52c | affected | ||
81732c3b2fede049a692e58a7ceabb6d18ffb18c< bfee93c9a6c395f9aa62268f1cedf64999844926 | affected | ||
81732c3b2fede049a692e58a7ceabb6d18ffb18c< 57964a5710252bc82fe22d9fa98c180c58c20244 | affected | ||
81732c3b2fede049a692e58a7ceabb6d18ffb18c< 14d2cc21ca622310babf373e3a8f0b40acfe8265 | affected | ||
81732c3b2fede049a692e58a7ceabb6d18ffb18c< 39cdb68c64d84e71a4a717000b6e5de208ee60cc | affected | ||
3.7 | affected | ||
< 3.7 | unaffected | ||
| … +6 more rows | |||
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I. Basic Information for CVE-2022-48627
Vulnerability Information
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Vulnerability Title
vt: fix memory overlapping when deleting chars in the buffer
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: vt: fix memory overlapping when deleting chars in the buffer A memory overlapping copy occurs when deleting a long line. This memory overlapping copy can cause data corruption when scr_memcpyw is optimized to memcpy because memcpy does not ensure its behavior if the destination buffer overlaps with the source buffer. The line buffer is not always broken, because the memcpy utilizes the hardware acceleration, whose result is not deterministic. Fix this problem by using replacing the scr_memcpyw with scr_memmovew.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在删除缓冲区中的字符时发生内存重叠问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-48627
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2022-48627 (1)
Other References for CVE-2022-48627 (5)
Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total
| CVE-2023-52515 | 9.8 CRITICAL | RDMA/srp: Do not call scsi_done() from srp_abort() |
| CVE-2023-52530 | 8.8 HIGH | wifi: mac80211: fix potential key use-after-free |
| CVE-2023-52522 | 8.8 HIGH | net: fix possible store tearing in neigh_periodic_work() |
| CVE-2023-52502 | 8.8 HIGH | net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() |
| CVE-2024-26621 | 8.2 HIGH | mm: huge_memory: don't force huge page alignment on 32 bit |
| CVE-2023-52517 | 7.8 HIGH | spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain |
| CVE-2023-52503 | 7.8 HIGH | tee: amdtee: fix use-after-free vulnerability in amdtee_close_session |
| CVE-2023-52574 | 7.8 HIGH | team: fix null-ptr-deref when team device type is changed |
| CVE-2023-52572 | 7.8 HIGH | cifs: Fix UAF in cifs_demultiplex_thread() |
| CVE-2023-52509 | 7.8 HIGH | ravb: Fix use-after-free issue in ravb_tx_timeout_work() |
| CVE-2023-52523 | 7.8 HIGH | bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets |
| CVE-2023-52513 | 7.5 HIGH | RDMA/siw: Fix connection failure handling |
| CVE-2023-52565 | 7.1 HIGH | media: uvcvideo: Fix OOB read |
| CVE-2023-52560 | mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions() | |
| CVE-2023-52562 | mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy() | |
| CVE-2023-52564 | Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux" | |
| CVE-2023-52563 | drm/meson: fix memory leak on ->hpd_notify callback | |
| CVE-2023-52528 | net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg | |
| CVE-2023-52561 | arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved | |
| CVE-2023-52566 | nilfs2: fix potential use after free in nilfs_gccache_submit_read_data() |
Showing top 20 of 57 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2022-48627
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