Out-of-bounds Read Affecting kernel-zfcpdump-devel package, versions <0:4.18.0-553.16.1.el8_10
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL8-KERNELZFCPDUMPDEVEL-7442062
- published11 Jul 2024
- disclosed9 Jul 2024
Introduced: 9 Jul 2024
CVE-2024-39487 (opens in a new tab)How to fix?
Upgrade RHEL:8 kernel-zfcpdump-devel to version 0:4.18.0-553.16.1.el8_10 or higher.
This issue was patched in RHSA-2024:5101.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-devel package and not the kernel-zfcpdump-devel package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2024-39487
- https://git.kernel.org/stable/c/6a8a4fd082c439e19fede027e80c79bc4c84bb8e
- https://git.kernel.org/stable/c/6b21346b399fd1336fe59233a17eb5ce73041ee1
- https://git.kernel.org/stable/c/707c85ba3527ad6aa25552033576b0f1ff835d7b
- https://git.kernel.org/stable/c/9f835e48bd4c75fdf6a9cff3f0b806a7abde78da
- https://git.kernel.org/stable/c/b75e33eae8667084bd4a63e67657c6a5a0f8d1e8
- https://git.kernel.org/stable/c/bfd14e5915c2669f292a31d028e75dcd82f1e7e9
- https://git.kernel.org/stable/c/c8eb8ab9a44ff0e73492d0a12a643c449f641a9f
- https://git.kernel.org/stable/c/e271ff53807e8f2c628758290f0e499dbe51cb3d