—–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2023.3823
linux security update
6 July 2023
===========================================================================
AusCERT Security Bulletin Summary
———————————
Product: linux
Publisher: Debian
Operating System: Debian GNU/Linux
Resolution: Patch/Upgrade
CVE Names: CVE-2023-35788 CVE-2023-32254 CVE-2023-32250
CVE-2023-31084 CVE-2023-3390 CVE-2023-3269
CVE-2023-3268 CVE-2023-3212 CVE-2023-3090
CVE-2023-2269 CVE-2023-2156 CVE-2023-2124
Original Bulletin:
http://www.debian.org/security/2023/dsa-5448
Comment: CVSS (Max): 9.8 CVE-2023-32254 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: NVD, [Red Hat]
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
– ————————–BEGIN INCLUDED TEXT——————–
– —–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA512
– – ————————————————————————-
Debian Security Advisory DSA-5448-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
July 05, 2023 https://www.debian.org/security/faq
– – ————————————————————————-
Package : linux
CVE ID : CVE-2023-2124 CVE-2023-2156 CVE-2023-2269 CVE-2023-3090
CVE-2023-3212 CVE-2023-3268 CVE-2023-3269 CVE-2023-3390
CVE-2023-31084 CVE-2023-32250 CVE-2023-32254 CVE-2023-35788
Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.
CVE-2023-2124
Kyle Zeng, Akshay Ajayan and Fish Wang discovered that missing
metadata validation may result in denial of service or potential
privilege escalation if a corrupted XFS disk image is mounted.
CVE-2023-2156
It was discovered that the IPv6 RPL protocol implementation in the
Linux kernel did not properly handled user-supplied data, resulting
in a triggerable assertion. An unauthenticated remote attacker can
take advantage of this flaw for denial of service.
CVE-2023-2269
Zheng Zhang reported that improper handling of locking in the device
mapper implementation may result in denial of service.
CVE-2023-3090
It was discovered that missing initialization in ipvlan networking
may lead to an out-of-bounds write vulnerability, resulting in
denial of service or potentially the execution of arbitrary code.
CVE-2023-3212
Yang Lan that missing validation in the GFS2 filesystem could result
in denial of service via a NULL pointer dereference when mounting a
malformed GFS2 filesystem.
CVE-2023-3268
It was discovered that an out-of-bounds memory access in relayfs
could result in denial of service or an information leak.
CVE-2023-3269
Ruihan Li discovered that incorrect lock handling for accessing and
updating virtual memory areas (VMAs) may result in privilege
escalation.
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-2023-31084
It was discovered that the DVB Core driver does not properly handle
locking of certain events, allowing a local user to cause a denial
of service.
CVE-2023-32250 / CVE-2023-32254
Quentin Minster discovered two race conditions in KSMBD, a kernel
server which implements the SMB3 protocol, which could result in
denial of service or potentially the execution of arbitrary code.
CVE-2023-35788
Hangyu Hua discovered an out-of-bounds write vulnerability in the
Flower classifier which may result in denial of service or the
execution of arbitrary code.
For the stable distribution (bookworm), these problems have been fixed in
version 6.1.37-1.
We recommend that you upgrade your linux packages.
For the detailed security status of linux please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/linux
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
– —–BEGIN PGP SIGNATURE—–
iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmSlxzBfFIAAAAAALgAo
aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2
NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND
z0TqhA//aamUmnSElduaBWsCIn+Bbz1QeZgUqeAtdLVyAR8DHhWOW5CQtaIYAGCN
bH8zYl4DULQNoWccNJKAB6mmh+eLK74L4W9Kkd4C3HL2g2CACDijoO79BlOE35VW
33/S+bhg5gzC1qyv5A6HKt9QltyIA6cI9B+WPPG+uA79T/+12mWI7XbGUYiOaNeR
WgOFK8iOhg7KemZqUFsbsG4qRGN0fzGHsU8KOLmF83hP6ObbPZKvVIdRHm0z7ff1
Xba6El+i75LRx0Fqv6tQ3pZE43blXJZIlesUw1M44U493FINmUNTpPAkbJPlHbOb
zBC61YcNiPhzyDu2bux+fyoNIfZxh4u9THm8SqWz5mejIFcjGgA9tNsQE3o9c1q/
bZ/QyWoYYOCNBUeLTfOOHuTLlxK7HslTIp4A7J2uLrUiTrmPXldXmIl0FsFc4l+8
qkBaZ+p58XbB7K02VIkr39gFx90GbF+Na0AaUoPGPyQBLz0X87uY6FyOCBY/SbyU
3ARTQT4O55jX+zgK7cUasrS/jVIDEczMIWkf0yHbL4a6ihiNc2Isc1s0gjTF26ji
AAE3BdIXi/V+CU4pHX8uq9BVwrDT0rm5BLgLJEo7n/oAWg6Tiq77TGOovQ1mgqF1
TTCY/41xmwkD9UflCu5gdq7jyIqDKPBxjemTZuMhoztQXL9D9tI=
=MBf4
– —–END PGP SIGNATURE—–
– ————————–END INCLUDED TEXT——————–
You have received this e-mail bulletin as a result of your organisation’s
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to [email protected]
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT’s members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation’s
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author’s website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: [email protected]
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
—–BEGIN PGP SIGNATURE—–
Comment: https://auscert.org.au/gpg-key/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=3a0h
—–END PGP SIGNATURE—–
Source: Read More
Security Bulletins