7.8

CVE-2024-27395

net: openvswitch: Fix Use-After-Free in ovs_ct_exit

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

net: openvswitch: Fix Use-After-Free in ovs_ct_exit

Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal
of ovs_ct_limit_exit, is not part of the RCU read critical section, it
is possible that the RCU grace period will pass during the traversal and
the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.18 < 4.19.313
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.275
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.216
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.158
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.90
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.30
Linux ≫ Linux Kernel Version >= 6.7 < 6.8.9
Linux ≫ Linux Kernel Version6.9 Updaterc1
Linux ≫ Linux Kernel Version6.9 Updaterc2
Linux ≫ Linux Kernel Version6.9 Updaterc3
Linux ≫ Linux Kernel Version6.9 Updaterc4
Linux ≫ Linux Kernel Version6.9 Updaterc5
Debian ≫ Debian Linux Version10.0
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.152
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Mailing List
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Mailing List
https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994
Patch
https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3
Patch
https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424
Patch
https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2
Patch
https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4
Patch
https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1
Patch
https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137
Patch
https://git.kernel.org/stable/c/edee0758747d7c219e29db9ed1d4eb33e8d32865
Patch
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
https://cert-portal.siemens.com/productcert/html/ssa-613116.html