High severity · published Aug 5, 2022
CVE-2022-1012
A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size
8.2
CVSS
4.4%
EPSS
No
On KEV
Description
A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.4% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
Linux kernel version prior to 5.18-rc6 · source: vendor, NVD
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-1012
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-1012
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2064604
lore.kernel.org
https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221020-0006/
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-561322.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
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