CVE-2023-52698 Affecting kernel-tools-devel package, versions <0:4.14.343-259.562.amzn2
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.
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Test your applications- Snyk IDSNYK-AMZN2-KERNELTOOLSDEVEL-7247695
- published12 Jun 2024
- disclosed17 May 2024
Introduced: 17 May 2024
CVE-2023-52698 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2 kernel-tools-devel to version 0:4.14.343-259.562.amzn2 or higher.
This issue was patched in ALAS2-2024-2549.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools-devel package and not the kernel-tools-devel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
calipso: fix memory leak in netlbl_calipso_add_pass()
If IPv6 support is disabled at boot (ipv6.disable=1), the calipso_init() -> netlbl_calipso_ops_register() function isn't called, and the netlbl_calipso_ops_get() function always returns NULL. In this case, the netlbl_calipso_add_pass() function allocates memory for the doi_def variable but doesn't free it with the calipso_doi_free().
BUG: memory leak unreferenced object 0xffff888011d68180 (size 64): comm "syz-executor.1", pid 10746, jiffies 4295410986 (age 17.928s) hex dump (first 32 bytes): 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<...>] kmalloc include/linux/slab.h:552 [inline] [<...>] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [inline] [<...>] netlbl_calipso_add+0x22e/0x4f0 net/netlabel/netlabel_calipso.c:111 [<...>] genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739 [<...>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] [<...>] genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800 [<...>] netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2515 [<...>] genl_rcv+0x29/0x40 net/netlink/genetlink.c:811 [<...>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] [<...>] netlink_unicast+0x54b/0x800 net/netlink/af_netlink.c:1339 [<...>] netlink_sendmsg+0x90a/0xdf0 net/netlink/af_netlink.c:1934 [<...>] sock_sendmsg_nosec net/socket.c:651 [inline] [<...>] sock_sendmsg+0x157/0x190 net/socket.c:671 [<...>] ____sys_sendmsg+0x712/0x870 net/socket.c:2342 [<...>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2396 [<...>] __sys_sendmsg+0xea/0x1b0 net/socket.c:2429 [<...>] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46 [<...>] entry_SYSCALL_64_after_hwframe+0x61/0xc6
Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with Syzkaller
[PM: merged via the LSM tree at Jakub Kicinski request]
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52698
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/stable/c/321b3a5592c8a9d6b654c7c64833ea67dbb33149
- https://git.kernel.org/stable/c/36e19f84634aaa94f543fedc0a07588949638d53
- https://git.kernel.org/stable/c/408bbd1e1746fe33e51f4c81c2febd7d3841d031
- https://git.kernel.org/stable/c/44a88650ba55e6a7f2ec485d2c2413ba7e216f01
- https://git.kernel.org/stable/c/9a8f811a146aa2a0230f8edb2e9f4b6609aab8da
- https://git.kernel.org/stable/c/a4529a08d3704c17ea9c7277d180e46b99250ded
- https://git.kernel.org/stable/c/ec4e9d630a64df500641892f4e259e8149594a99
- https://git.kernel.org/stable/c/f14d36e6e97fe935a20e0ceb159c100f90b6627c