CVE-2019-20812
unknown
CVSS v3
—
CVSS v2
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VIR risk
—
Description
An issue was discovered in the Linux kernel before 5.4.7. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067.
Predictions
Exploit likelihood
20%
Patch ETA
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Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-20812
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-20812.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.4.8-1 |
| debian | bullseye | fixed | 5.4.8-1 |
| debian | forky | fixed | 5.4.8-1 |
| debian | sid | fixed | 5.4.8-1 |
| debian | trixie | fixed | 5.4.8-1 |
References
Verify integrity in audit chain (admin only). AS-IS.