CVE-2022-1055
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
Summary
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
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Kernel | 5.1.0 < 5.4.177 | affected |
| Linux | Kernel | 5.5.0 < 5.10.97 | affected |
| Linux | Kernel | 5.11.0 < 5.15.20 | affected |
| Linux | Kernel | 5.16.0 < 5.16.6 | affected |
| Linux | Kernel | 5.17.0 | unaffected |
| Linux | Kernel | 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 | unaffected |
Weaknesses
- CWE-416: CWE-416 Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
CVE Program Container
Additional References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc
- https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://security.netapp.com/advisory/ntap-20220506-0007/
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc
- https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
- https://security.netapp.com/advisory/ntap-20220506-0007/
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
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