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CVE-2023-52581— netfilter: nf_tables: fix memleak when more than 255 elements expired

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood

Affected Version Matrix 13

VendorProduct Version RangeStatus
Linux Linux 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27< 7cf055b43756b10aa2b851c927c940f5ed652125 affected
bbdb3b65aa91aa0a32b212f27780b28987f2d94f< a995a68e8a3b48533e47c856865d109a1f1a9d01 affected
448be0774882f95a74fa5eb7519761152add601b< 09c85f2d21ab6b5acba31a037985b13e8e6565b8 affected
d19e8bf3ea4114dd21fc35da21f398203d7f7df1< ef99506eaf1dc31feff1adfcfd68bc5535a22171 affected
ea3eb9f2192e4fc33b795673e56c97a21987f868< 7e5d732e6902eb6a37b35480796838a145ae5f07 affected
5f68718b34a531a556f2f50300ead2862278da26< 4aea243b6853d06c1d160a9955b759189aa02b14 affected
5f68718b34a531a556f2f50300ead2862278da26< cf5000a7787cbc10341091d37245a42c119d26c5 affected
0624f190b5742a1527cd938295caa8dc5281d4cd affected
… +5 more rows
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I. Basic Information for CVE-2023-52581

Vulnerability Information
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Vulnerability Title
netfilter: nf_tables: fix memleak when more than 255 elements expired
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memleak when more than 255 elements expired When more than 255 elements expired we're supposed to switch to a new gc container structure. This never happens: u8 type will wrap before reaching the boundary and nft_trans_gc_space() always returns true. This means we recycle the initial gc container structure and lose track of the elements that came before. While at it, don't deref 'gc' after we've passed it to call_rcu.
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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27 ~ 7cf055b43756b10aa2b851c927c940f5ed652125 -
Linux Linux 6.5 -

II. Public POCs for CVE-2023-52581

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III. Intelligence Information for CVE-2023-52581

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Other References for CVE-2023-52581 (7)

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-2023-52523 7.8 HIGH bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
CVE-2023-52509 7.8 HIGH ravb: Fix use-after-free issue in ravb_tx_timeout_work()
CVE-2023-52572 7.8 HIGH cifs: Fix UAF in cifs_demultiplex_thread()
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-2023-52513 7.5 HIGH RDMA/siw: Fix connection failure handling
CVE-2023-52565 7.1 HIGH media: uvcvideo: Fix OOB read
CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()
CVE-2023-52561 arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
CVE-2023-52562 mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
CVE-2023-52563 drm/meson: fix memory leak on ->hpd_notify callback
CVE-2023-52582 netfs: Only call folio_start_fscache() one time for each folio
CVE-2023-52518 Bluetooth: hci_codec: Fix leaking content of local_codecs
CVE-2023-52560 mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52581

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