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CVE-2022-34918

Vulnerability in N/a

CVSS score

7.8

EPSS probability

%5.5

Risk score

0.4

Published

4 y ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2022-34918 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2022-34918 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1n/an/a View
2linuxlinux kernel View
3linuxlinux kernel View
4linuxlinux kernel View
5linuxlinux kernel View
6linuxlinux kernel View
7linuxlinux kernel View
8debiandebian linux View
9canonicalubuntu linux View
10canonicalubuntu linux View
11canonicalubuntu linux View
12canonicalubuntu linux View
13canonicalubuntu linux View
14netapph300s firmware View
15netapph300s View
16netapph500s firmware View
17netapph500s View
18netapph700s firmware View
19netapph700s View
20netapph410s firmware View
21netapph410s View
22netapph410c firmware View
23netapph410c View
Total affected vendors: 5|Products: 23

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.8CVSS V31HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD
7.2CVSS V2—AV:L/AC:L/Au:N/C:C/I:C/A:CNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-34918 is associated with the following CWEs:

CWE-843: Common Weakness Enumeration Entry CWE-843

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-34918 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6vendor-advisoryhttps://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#uvendor-advisoryhttps://www.openwall.com/lists/oss-security/2022/07/02/3vendor-advisory[oss-security] 20220705 Re: Linux kernel: Netfilter heap buffer overflow in nft_set_elem_initvendor-advisoryhttps://www.randorisec.fr/crack-linux-firewall/vendor-advisoryDSA-5191vendor-advisory[oss-security] 20220806 Re: Linux kernel: Netfilter heap buffer overflow in nft_set_elem_initvendor-advisoryhttps://security.netapp.com/advisory/ntap-20220826-0004/vendor-advisoryhttp://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.htmlvendor-advisoryhttp://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.htmlvendor-advisory

CVSS Vector Radar Chart

7.8 / 10
Attack VectorLocalComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama doğrulandı

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

N
n/a logo
n/a
L
linux logo
linux
D
debian logo
debian
C
canonical logo
canonical
N
netapp logo
netapp

Weakness Type (CWE & CAPEC)

CWE-843

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