CVE-2024-39487

Name: CVE-2024-39487
Creator: NVD / NIST
Published: 2024-07-09T10:15:04.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2024-39487 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set() In function bond_option_arp_ip_targets_set(), if newval->string is an empty string, newval->string+1 will point to the byte after the string, causing an out-of-bound read. BUG: KASAN: slab-out-of-bounds in strlen+0x7d/0xa0 lib/string.c:418 Read of size 1 at addr ffff8881119c4781 by task syz-executor665/8107 CPU: 1 PID: 8107 Comm: syz-executor665 Not tainted 6.7.0-rc7 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc1/0x5e0 mm/kasan/report.c:475 kasan_report+0xbe/0xf0 mm/kasan/report.c:588 strlen+0x7d/0xa0 lib/string.c:418 __fortify_strlen include/linux/fortify-string.h:210 [inline] in4_pton+0xa3/0x3f0 net/core/utils.c:130 bond_option_arp_ip_targets_set+0xc2/0x910 drivers/net/bonding/bond_options.c:1201 __bond_opt_set+0x2a4/0x1030 drivers/net/bonding/bond_options.c:767 __bond_opt_set_notify+0x48/0x150 drivers/net/bonding/bond_options.c:792 bond_opt_tryset_rtnl+0xda/0x160 drivers/net/bonding/bond_options.c:817 bonding_sysfs_store_option+0xa1/0x120 drivers/net/bonding/bond_sysfs.c:156 dev_attr_store+0x54/0x80 drivers/base/core.c:2366 sysfs_kf_write+0x114/0x170 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x337/0x500 fs/kernfs/file.c:334 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x96a/0xd80 fs/read_write.c:584 ksys_write+0x122/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b ---[ end trace ]--- Fix it by adding a check of string length before using it.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set() In function bond_option_arp_ip_targets_set(), if newval->string is an empty string, newval->string+1 will point to the byte after the string, causing an out-of-bound read. BUG: KASAN: slab-out-of-bounds in strlen+0x7d/0xa0 lib/string.c:418 Read of size 1 at addr ffff8881119c4781 by task syz-executor665/8107 CPU: 1 PID: 8107 Comm: syz-executor665 Not tainted 6.7.0-rc7 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc1/0x5e0 mm/kasan/report.c:475 kasan_report+0xbe/0xf0 mm/kasan/report.c:588 strlen+0x7d/0xa0 lib/string.c:418 __fortify_strlen include/linux/fortify-string.h:210 [inline] in4_pton+0xa3/0x3f0 net/core/utils.c:130 bond_option_arp_ip_targets_set+0xc2/0x910 drivers/net/bonding/bond_options.c:1201 __bond_opt_set+0x2a4/0x1030 drivers/net/bonding/bond_options.c:767 __bond_opt_set_notify+0x48/0x150 drivers/net/bonding/bond_options.c:792 bond_opt_tryset_rtnl+0xda/0x160 drivers/net/bonding/bond_options.c:817 bonding_sysfs_store_option+0xa1/0x120 drivers/net/bonding/bond_sysfs.c:156 dev_attr_store+0x54/0x80 drivers/base/core.c:2366 sysfs_kf_write+0x114/0x170 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x337/0x500 fs/kernfs/file.c:334 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x96a/0xd80 fs/read_write.c:584 ksys_write+0x122/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b ---[ end trace ]--- Fix it by adding a check of string length before using it.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS Probability

0.24%

15.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 3.13, < 4.19.318	—
Linux	Linux Kernel	>= 4.20, < 5.4.280	—
Linux	Linux Kernel	>= 5.5, < 5.10.222	—
Linux	Linux Kernel	>= 5.11, < 5.15.163	—
Linux	Linux Kernel	>= 5.16, < 6.1.98	—
Linux	Linux Kernel	>= 6.2, < 6.6.39	—
Linux	Linux Kernel	>= 6.7, < 6.9.9	—
Linux	Linux Kernel	6.10	Rc1

References

https://git.kernel.org/stable/c/6a8a4fd082c439e19fede027e80c79bc4c84bb8eMailing List, Patch
https://git.kernel.org/stable/c/6b21346b399fd1336fe59233a17eb5ce73041ee1Mailing List, Patch
https://git.kernel.org/stable/c/707c85ba3527ad6aa25552033576b0f1ff835d7bMailing List, Patch
https://git.kernel.org/stable/c/9f835e48bd4c75fdf6a9cff3f0b806a7abde78daMailing List, Patch
https://git.kernel.org/stable/c/b75e33eae8667084bd4a63e67657c6a5a0f8d1e8Mailing List, Patch
https://git.kernel.org/stable/c/bfd14e5915c2669f292a31d028e75dcd82f1e7e9Mailing List, Patch
https://git.kernel.org/stable/c/c8eb8ab9a44ff0e73492d0a12a643c449f641a9fMailing List, Patch
https://git.kernel.org/stable/c/e271ff53807e8f2c628758290f0e499dbe51cb3dMailing List, Patch
https://git.kernel.org/stable/c/6a8a4fd082c439e19fede027e80c79bc4c84bb8eMailing List, Patch
https://git.kernel.org/stable/c/6b21346b399fd1336fe59233a17eb5ce73041ee1Mailing List, Patch
https://git.kernel.org/stable/c/707c85ba3527ad6aa25552033576b0f1ff835d7bMailing List, Patch
https://git.kernel.org/stable/c/9f835e48bd4c75fdf6a9cff3f0b806a7abde78daMailing List, Patch
https://git.kernel.org/stable/c/b75e33eae8667084bd4a63e67657c6a5a0f8d1e8Mailing List, Patch
https://git.kernel.org/stable/c/bfd14e5915c2669f292a31d028e75dcd82f1e7e9Mailing List, Patch
https://git.kernel.org/stable/c/c8eb8ab9a44ff0e73492d0a12a643c449f641a9fMailing List, Patch
https://git.kernel.org/stable/c/e271ff53807e8f2c628758290f0e499dbe51cb3dMailing List, Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Timeline

Published: Jul 9, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-39487?

How severe is CVE-2024-39487?

CVE-2024-39487 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2024-39487?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-39487?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST