| Description: | Summary:
The remote host is missing an update for the Debian 'linux-5.10' package(s) announced via the DLA-3512-1 advisory.
Vulnerability Insight:
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
CVE-2023-2156
It was discovered that a flaw in the handling of the RPL protocol may allow an unauthenticated remote attacker to cause a denial of service if RPL is enabled (not by default in Debian).
CVE-2023-3390
A use-after-free flaw in the netfilter subsystem caused by incorrect error path handling may result in denial of service or privilege escalation.
CVE-2023-3610
A use-after-free flaw in the netfilter subsystem caused by incorrect refcount handling on the table and chain destroy path may result in denial of service or privilege escalation.
CVE-2023-20593
Tavis Ormandy discovered that under specific microarchitectural circumstances, a vector register in AMD Zen 2 CPUs may not be written to 0 correctly. This flaw allows an attacker to leak sensitive information across concurrent processes, hyper threads and virtualized guests.
For details please refer to [link moved to references] and [link moved to references].
This issue can also be mitigated by a microcode update through the amd64-microcode package or a system firmware (BIOS/UEFI) update. However, the initial microcode release by AMD only provides updates for second generation EPYC CPUs. Various Ryzen CPUs are also affected, but no updates are available yet.
CVE-2023-31248
Mingi Cho discovered a use-after-free flaw in the Netfilter nf_tables implementation when using nft_chain_lookup_byid, which may result in local privilege escalation for a user with the CAP_NET_ADMIN capability in any user or network namespace.
CVE-2023-35001
Tanguy DUBROCA discovered an out-of-bounds reads and write flaw in the Netfilter nf_tables implementation when processing an nft_byteorder expression, which may result in local privilege escalation for a user with the CAP_NET_ADMIN capability in any user or network namespace.
For Debian 10 buster, these problems have been fixed in version 5.10.179-3~
deb10u1.
We recommend that you upgrade your linux-5.10 packages.
For the detailed security status of linux-5.10 please refer to its security tracker page at: [link moved to references]
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]
Affected Software/OS:
'linux-5.10' package(s) on Debian 10.
Solution:
Please install the updated package(s).
CVSS Score:
6.8
CVSS Vector:
AV:L/AC:L/Au:S/C:C/I:C/A:C
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