5.5

CVE-2024-40983

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

tipc: force a dst refcount before doing decryption

As it says in commit 3bc07321ccc2 ("xfrm: Force a dst refcount before
entering the xfrm type handlers"):

"Crypto requests might return asynchronous. In this case we leave the
 rcu protected region, so force a refcount on the skb's destination
 entry before we enter the xfrm type input/output handlers."

On TIPC decryption path it has the same problem, and skb_dst_force()
should be called before doing decryption to avoid a possible crash.

Shuang reported this issue when this warning is triggered:

  [] WARNING: include/net/dst.h:337 tipc_sk_rcv+0x1055/0x1ea0 [tipc]
  [] Kdump: loaded Tainted: G W --------- - - 4.18.0-496.el8.x86_64+debug
  [] Workqueue: crypto cryptd_queue_worker
  [] RIP: 0010:tipc_sk_rcv+0x1055/0x1ea0 [tipc]
  [] Call Trace:
  [] tipc_sk_mcast_rcv+0x548/0xea0 [tipc]
  [] tipc_rcv+0xcf5/0x1060 [tipc]
  [] tipc_aead_decrypt_done+0x215/0x2e0 [tipc]
  [] cryptd_aead_crypt+0xdb/0x190
  [] cryptd_queue_worker+0xed/0x190
  [] process_one_work+0x93d/0x17e0

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.221
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.162
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.96
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.36
Linux ≫ Linux Kernel Version >= 6.7 < 6.9.7
Linux ≫ Linux Kernel Version6.10 Updaterc1
Linux ≫ Linux Kernel Version6.10 Updaterc2
Linux ≫ Linux Kernel Version6.10 Updaterc3
Linux ≫ Linux Kernel Version6.10 Updaterc4
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.01% 0.009
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H