Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2024-50142— xfrm: validate new SA's prefixlen using SA family when sel.family is unset

EPSS 0.01% · P0
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2024-50142

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
xfrm: validate new SA's prefixlen using SA family when sel.family is unset
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.") syzbot created an SA with usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Because of the AF_UNSPEC selector, verify_newsa_info doesn't put limits on prefixlen_{s,d}. But then copy_from_user_state sets x->sel.family to usersa.family (AF_INET). Do the same conversion in verify_newsa_info before validating prefixlen_{s,d}, since that's how prefixlen is going to be used later on.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于在验证新SA的prefixlen时，未正确处理SA系列。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ f31398570acf0f0804c644006f7bfa9067106b0a -
LinuxLinux 2.6.12 -

II. Public POCs for CVE-2024-50142

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2024-50142

请登录查看更多情报信息。

Same Patch Batch · Linux · 2024-11-07 · 34 CVEs total

CVE-2024-50165bpf: Preserve param->string when parsing mount options
CVE-2024-50157RDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop
CVE-2024-50158RDMA/bnxt_re: Fix out of bound check
CVE-2024-50159firmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()
CVE-2024-50160ALSA: hda/cs8409: Fix possible NULL dereference
CVE-2024-50161bpf: Check the remaining info_cnt before repeating btf fields
CVE-2024-50162bpf: devmap: provide rxq after redirect
CVE-2024-50163bpf: Make sure internal and UAPI bpf_redirect flags don't overlap
CVE-2024-50164bpf: Fix overloading of MEM_UNINIT's meaning
CVE-2024-50156drm/msm: Avoid NULL dereference in msm_disp_state_print_regs()
CVE-2024-50166fsl/fman: Fix refcount handling of fman-related devices
CVE-2024-50167be2net: fix potential memory leak in be_xmit()
CVE-2024-50168net/sun3_82586: fix potential memory leak in sun3_82586_send_packet()
CVE-2024-50169vsock: Update rx_bytes on read_skb()
CVE-2024-50170net: bcmasp: fix potential memory leak in bcmasp_xmit()
CVE-2024-50171net: systemport: fix potential memory leak in bcm_sysport_xmit()
CVE-2024-50172RDMA/bnxt_re: Fix a possible memory leak
CVE-2024-50139KVM: arm64: Fix shift-out-of-bounds bug
CVE-2024-50155netdevsim: use cond_resched() in nsim_dev_trap_report_work()
CVE-2024-50154tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50142

No comments yet

Leave a comment