5.5 CVE-2024-26663

Patch
 

In the Linux kernel, the following vulnerability has been resolved: tipc: Check the bearer type before calling tipc_udp_nl_bearer_add() syzbot reported the following general protection fault [1]: general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087] ... RIP: 0010:tipc_udp_is_known_peer+0x9c/0x250 net/tipc/udp_media.c:291 ... Call Trace: <TASK> tipc_udp_nl_bearer_add+0x212/0x2f0 net/tipc/udp_media.c:646 tipc_nl_bearer_add+0x21e/0x360 net/tipc/bearer.c:1089 genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:972 genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline] genl_rcv_msg+0x561/0x800 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2544 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x53b/0x810 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b7/0xd70 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2584 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2638 __sys_sendmsg+0x117/0x1e0 net/socket.c:2667 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 The cause of this issue is that when tipc_nl_bearer_add() is called with the TIPC_NLA_BEARER_UDP_OPTS attribute, tipc_udp_nl_bearer_add() is called even if the bearer is not UDP. tipc_udp_is_known_peer() called by tipc_udp_nl_bearer_add() assumes that the media_ptr field of the tipc_bearer has an udp_bearer type object, so the function goes crazy for non-UDP bearers. This patch fixes the issue by checking the bearer type before calling tipc_udp_nl_bearer_add() in tipc_nl_bearer_add().
https://nvd.nist.gov/vuln/detail/CVE-2024-26663

Categories

CWE-476 : NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL. NULL pointer dereferences are frequently resultant from rarely encountered error conditions and race conditions, since these are most likely to escape detection during the testing phases. Common abbreviation for Null Pointer Dereference Common abbreviation for Null Pointer Dereference Common abbreviation for Null Pointer Exception used for access of nil in Go programs This weakness can be detected using dynamic tools and techniques that interact with the software using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The software's operation may slow down, but it should not become unstable, crash, or generate incorrect results. Identify error conditions that are not likely to occur during normal usage and trigger them. For example, run the program under low memory conditions, run with insufficient privileges or permissions, interrupt a transaction before it is completed, or disable connectivity to basic network services such as DNS. Monitor the software for any unexpected behavior. If you trigger an unhandled exception or similar error that was discovered and handled by the application's environment, it may still indicate unexpected conditions that were not handled by the application itself. Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.) If all pointers that could have been modified are checked for NULL before use, nearly all NULL pointer dereferences can be prevented. Select a programming language that is not susceptible to these issues. Check the results of all functions that return a value and verify that the value is non-null before acting upon it. Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values. Explicitly initialize all variables and other data stores, either during declaration or just before the first usage. race condition causes a table to be corrupted if a timer activates while it is being modified, leading to resultant NULL dereference; also involves locking. large number of packets leads to NULL dereference packet with invalid error status value triggers NULL dereference Chain: race condition for an argument value, possibly resulting in NULL dereference ssh component for Go allows clients to cause a denial of service (nil pointer dereference) against SSH servers. Chain: Use of an unimplemented network socket operation pointing to an uninitialized handler function (CWE-456) causes a crash because of a null pointer dereference (CWE-476). Chain: race condition (CWE-362) might allow resource to be released before operating on it, leading to NULL dereference (CWE-476) Chain: some unprivileged ioctls do not verify that a structure has been initialized before invocation, leading to NULL dereference Chain: IP and UDP layers each track the same value with different mechanisms that can get out of sync, possibly resulting in a NULL dereference Chain: uninitialized function pointers can be dereferenced allowing code execution Chain: improper initialization of memory can lead to NULL dereference Chain: game server can access player data structures before initialization has happened leading to NULL dereference Chain: The return value of a function returning a pointer is not checked for success (CWE-252) resulting in the later use of an uninitialized variable (CWE-456) and a null pointer dereference (CWE-476) Chain: a message having an unknown message type may cause a reference to uninitialized memory resulting in a null pointer dereference (CWE-476) or dangling pointer (CWE-825), possibly crashing the system or causing heap corruption. Chain: unchecked return value can lead to NULL dereference SSL software allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference. Network monitor allows remote attackers to cause a denial of service (crash) via a malformed RADIUS packet that triggers a null dereference. Network monitor allows remote attackers to cause a denial of service (crash) via a malformed Q.931, which triggers a null dereference. Chat client allows remote attackers to cause a denial of service (crash) via a passive DCC request with an invalid ID number, which causes a null dereference. Server allows remote attackers to cause a denial of service (crash) via malformed requests that trigger a null dereference. OS allows remote attackers to cause a denial of service (crash from null dereference) or execute arbitrary code via a crafted request during authentication protocol selection. Game allows remote attackers to cause a denial of service (server crash) via a missing argument, which triggers a null pointer dereference. Network monitor allows remote attackers to cause a denial of service (crash) or execute arbitrary code via malformed packets that cause a NULL pointer dereference. Chain: System call returns wrong value (CWE-393), leading to a resultant NULL dereference (CWE-476).

References


 

CPE

cpe start end
Configuration 1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 4.9 < 4.19.307
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 4.20 < 5.4.269
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.5 < 5.10.210
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.11 < 5.15.149
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 5.16 < 6.1.78
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.2 < 6.6.17
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.7 < 6.7.5
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*
Configuration 2
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*


REMEDIATION


Patch

Url
https://git.kernel.org/stable/c/0cd331dfd6023640c9669d0592bc0fd491205f87
https://git.kernel.org/stable/c/19d7314f2fb9515bdaac9829d4d8eb34edd1fe95
https://git.kernel.org/stable/c/24ec8f0da93b8a9fba11600be8a90f0d73fb46f1
https://git.kernel.org/stable/c/3871aa01e1a779d866fa9dfdd5a836f342f4eb87
https://git.kernel.org/stable/c/3d3a5b31b43515b5752ff282702ca546ec3e48b6
https://git.kernel.org/stable/c/6f70f0b412458c622a12d4292782c8e92e210c2f
https://git.kernel.org/stable/c/888e3524be87f3df9fa3c083484e4b62b3e3bb59
https://git.kernel.org/stable/c/c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12
https://git.kernel.org/stable/c/0cd331dfd6023640c9669d0592bc0fd491205f87
https://git.kernel.org/stable/c/19d7314f2fb9515bdaac9829d4d8eb34edd1fe95
https://git.kernel.org/stable/c/24ec8f0da93b8a9fba11600be8a90f0d73fb46f1
https://git.kernel.org/stable/c/3871aa01e1a779d866fa9dfdd5a836f342f4eb87
https://git.kernel.org/stable/c/3d3a5b31b43515b5752ff282702ca546ec3e48b6
https://git.kernel.org/stable/c/6f70f0b412458c622a12d4292782c8e92e210c2f
https://git.kernel.org/stable/c/888e3524be87f3df9fa3c083484e4b62b3e3bb59
https://git.kernel.org/stable/c/c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12


EXPLOITS


Exploit-db.com

id description date
No known exploits

POC Github

Url
No known exploits

Other Nist (github, ...)

Url
No known exploits


CAPEC


Common Attack Pattern Enumerations and Classifications

id description severity
No entry