Information Exposure Affecting kernel-debug-core package, versions <0:4.18.0-305.57.1.el8_4
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGCORE-4197948
- published 11 May 2022
- disclosed 2 May 2022
Introduced: 2 May 2022
CVE-2022-1012 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug-core to version 0:4.18.0-305.57.1.el8_4 or higher.
This issue was patched in RHSA-2022:5626.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-core package and not the kernel-debug-core package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2022-1012
- https://kernel.googlesource.com/pub/scm/linux/kernel/git/jkirsher/net-queue/+/b2d057560b8107c633b39aabe517ff9d93f285e3%5E%21/
- https://bugzilla.redhat.com/show_bug.cgi?id=2064604
- https://lore.kernel.org/lkml/20220427065233.2075-1-w@1wt.eu/T/
- https://security.netapp.com/advisory/ntap-20221020-0006/
- https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T/