VulnerabilityAnalyzed
CVE-2022-1055
A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation.
HIGH 8.6EPSS 0.50%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- CVSS 4.0
- 8.6 HIGHCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.50% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · redhat/enterprise linux · fedoraproject/fedora · canonical/ubuntu linux · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h300e firmware · netapp/h500e firmware · netapp/h700e firmware · netapp/h410s firmware · netapp/h410c firmware
- Source
- cve-coordination@google.com
References
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory, VDB Entry
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Patch, Vendor Advisory
- https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Exploit, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220506-0007/Third Party Advisory
- https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffcExploit, Patch, Third Party Advisory
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory, VDB Entry
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Patch, Vendor Advisory
- https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5Exploit, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220506-0007/Third Party Advisory
- https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffcExploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.