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Vulnerability Intelligence

CVE-2022-1055 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2022-1055

CVE-2022-1055

HIGH8.6

Use after Free in tc_new_tfilter allowing for privilege escalation in Linux Kernel

Published Mar 29, 2022

Modified 1 years ago

Details

A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5

References

WEBhttp://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html WEBhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 WEBhttps://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 WEBhttps://security.netapp.com/advisory/ntap-20220506-0007/WEBhttps://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2022-1055

CVSS Analysis

CVSS v4.0

8.6

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

HighAC:H

Attack Requirements

NoneAT:N

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

HighVC:H

Vuln. Integrity

HighVI:H

Vuln. Availability

NoneVA:N

Subsequent System

Subseq. Confidentiality

HighSC:H

Subseq. Integrity

HighSI:H

Subseq. Availability

NoneSA:N

8.6/CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Weakness Type (CWE)

Memory Safety

Ecosystems

Timeline

PublishedMar 29, 2022

ModifiedAug 2, 2024