Vulnerability Details : CVE-2022-1016
A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker.
Vulnerability category: Memory Corruption
Products affected by CVE-2022-1016
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.13:rc1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-1016
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-1016
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2022-1016
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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Secondary)
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The product accesses or uses a pointer that has not been initialized.Assigned by: secalert@redhat.com (Secondary)
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The product does not initialize a critical resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-1016
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https://seclists.org/oss-sec/2022/q1/205
oss-sec: Linux kernel: CVE-2022-1015,CVE-2022-1016 in nf_tables cause privilege escalation, information leakExploit;Mailing List;Third Party Advisory
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http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/
How The Tables Have Turned: An analysis of two new Linux vulnerabilities in nf_tables · David's BlogExploit;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=2066614
2066614 – (CVE-2022-1016) CVE-2022-1016 kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UMIssue Tracking;Third Party Advisory
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https://access.redhat.com/security/cve/CVE-2022-1016
CVE-2022-1016- Red Hat Customer PortalThird Party Advisory
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