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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- EPSS
- 4.39% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
EPSS 4.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2064604Issue Tracking, Third Party Advisory
- https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T/
- https://security.netapp.com/advisory/ntap-20221020-0006/Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2064604Issue Tracking, Third Party Advisory
- https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T/
- https://security.netapp.com/advisory/ntap-20221020-0006/Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-561322.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.