Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2024-53210

Disclosure Date: December 27, 2024 •
CVE-2024-53210 CVSS v3 Base Score: 5.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

In the Linux kernel, the following vulnerability has been resolved:

s390/iucv: MSG_PEEK causes memory leak in iucv_sock_destruct()

Passing MSG_PEEK flag to skb_recv_datagram() increments skb refcount
(skb->users) and iucv_sock_recvmsg() does not decrement skb refcount
at exit.
This results in skb memory leak in skb_queue_purge() and WARN_ON in
iucv_sock_destruct() during socket close. To fix this decrease
skb refcount by one if MSG_PEEK is set in order to prevent memory
leak and WARN_ON.

WARNING: CPU: 2 PID: 6292 at net/iucv/af_iucv.c:286 iucv_sock_destruct+0x144/0x1a0 [af_iucv]
CPU: 2 PID: 6292 Comm: afiucv_test_msg Kdump: loaded Tainted: G W 6.10.0-rc7 #1
Hardware name: IBM 3931 A01 704 (z/VM 7.3.0)
Call Trace:

    [<001587c682c4aa98>] iucv_sock_destruct+0x148/0x1a0 [af_iucv]
    [<001587c682c4a9d0>] iucv_sock_destruct+0x80/0x1a0 [af_iucv]
    [<001587c704117a32>] __sk_destruct+0x52/0x550
    [<001587c704104a54>] __sock_release+0xa4/0x230
    [<001587c704104c0c>] sock_close+0x2c/0x40
    [<001587c702c5f5a8>] __fput+0x2e8/0x970
    [<001587c7024148c4>] task_work_run+0x1c4/0x2c0
    [<001587c7023b0716>] do_exit+0x996/0x1050
    [<001587c7023b13aa>] do_group_exit+0x13a/0x360
    [<001587c7023b1626>] __s390x_sys_exit_group+0x56/0x60
    [<001587c7022bccca>] do_syscall+0x27a/0x380
    [<001587c7049a6a0c>] __do_syscall+0x9c/0x160
    [<001587c7049ce8a8>] system_call+0x70/0x98
    Last Breaking-Event-Address:
    [<001587c682c4a9d4>] iucv_sock_destruct+0x84/0x1a0 [af_iucv]

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CVSS V3 Severity and Metrics
Base Score:
5.5 Medium
Impact Score:
3.6
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Linux 934326aef7ac4652f81c69d18bf44eebaefc39c3
Linux not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

Products

Weaknesses

Technical Analysis