CVSS4
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/SC:H/VI:H/SI:H/VA:N/SA:N
AI Score
Confidence
Low
SSVC
Exploitation
poc
Automatable
no
Technical Impact
total
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
[
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "5.17_rc3",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]
packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
security.netapp.com/advisory/ntap-20220506-0007/
syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc