QID 352343

<DIV ID="issue_overview"> an issue has been reported in the linux kernel's handling of raw sockets.
This issue can be used locally to cause denial of service or local privilege escalation from unprivileged processes or from containers with the cap_net_raw capability enabled. see also: https://marc.info/?l=linux-netdev&m=159915549623724&w=2 https://www.openwall.com/lists/oss-security/2020/09/03/3 https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-14386 (cve-2020-14386 ) a logic bug flaw was found in the linux kernel's implementation of ssbd.
A bug in the logic handling allows an attacker with a local account to disable ssbd protection during a context switch when additional speculative execution mitigations are in place.
This issue was introduced when the per task/process conditional stipb switching was added on top of the existing ssbd switching.
The highest threat from this vulnerability is to confidentiality. (
cve-2020-10766 ) a flaw was found in the linux kernel's implementation of the enhanced ibpb (indirect branch prediction barrier).
The ibpb mitigation will be disabled when stibp is not available or when the enhanced indirect branch restricted speculation (ibrs) is available.
This flaw allows a local attacker to perform a spectre v2 style attack when this configuration is active.
The highest threat from this vulnerability is to confidentiality. (
cve-2020-10767 ) a flaw was found in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled.
This call incorrectly reports it as being 'force disabled' when it is not and opens the system to spectre v2 attacks.
The highest threat from this vulnerability is to confidentiality. (
cve-2020-10768 ) an issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the linux kernel through 5.6.10.
Attackers may trigger a sync of excessive duration via an xfs v5 image with crafted metadata, aka cid-d0c7feaf8767. (
cve-2020-12655 ) </DIV>

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.