medium
5.5
CWE
704 681
Advisory Published
CVE Published
Updated

CVE-2022-0322: Incorrect Type Cast

First published: Thu Oct 14 2021(Updated: )

A flaw was found in sctp_make_strreset_req in net/sctp/sm_make_chunk.c in SCTP network protocol in the Linux kernel. In this flaw, an attempt to use more buffer than was allocated triggers BUG_ON to cause a denial of service (DOS). References: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2d859e3fc97e79d907761550dbc03ff1b36479c">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2d859e3fc97e79d907761550dbc03ff1b36479c</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel<5.15
5.15
redhat/kernel-rt<0:4.18.0-372.9.1.rt7.166.el8
0:4.18.0-372.9.1.rt7.166.el8
redhat/kernel<0:4.18.0-372.9.1.el8
0:4.18.0-372.9.1.el8
Linux Linux kernel<5.15
Linux Linux kernel=5.15
Linux Linux kernel=5.15-rc1
Linux Linux kernel=5.15-rc2
Linux Linux kernel=5.15-rc3
Linux Linux kernel=5.15-rc4
Linux Linux kernel=5.15-rc5
Fedoraproject Fedora=35
Oracle Communications Cloud Native Core Binding Support Function=22.1.3
Oracle Communications Cloud Native Core Network Exposure Function=22.1.1
Oracle Communications Cloud Native Core Policy=22.2.0
debian/linux
4.19.249-2
4.19.289-2
5.10.197-1
5.10.191-1
6.1.66-1
6.1.69-1
6.5.13-1
6.6.9-1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2d859e3fc97e79d907761550dbc03ff1b36479c

Remedy

https://www.oracle.com/security-alerts/cpujul2022.html

Remedy

Mitigation for this issue is to skip loading the affected module SCTP onto the system. Until we have a fix available, this can be done by a blacklist mechanism and will ensure the driver is not loaded at the boot time. ~~~ How do I blacklist a kernel module to prevent it from loading automatically? https://access.redhat.com/solutions/41278 ~~~

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2022-0322?

    CVE-2022-0322 is a vulnerability in the SCTP network protocol in the Linux kernel that can be exploited by a local user to cause a denial of service (DOS) attack.

  • What is the severity of CVE-2022-0322?

    The severity of CVE-2022-0322 is medium, with a CVSS score of 5.5.

  • Which software is affected by CVE-2022-0322?

    The Linux kernel versions up to 5.15, Fedora 35, Oracle Communications Cloud Native Core Binding Support Function 22.1.3, Oracle Communications Cloud Native Core Network Exposure Function 22.1.1, and Oracle Communications Cloud Native Core Policy 22.2.0 are affected by CVE-2022-0322.

  • How can CVE-2022-0322 be exploited?

    CVE-2022-0322 can be exploited by a local user with privilege access to trigger a BUG_ON issue by attempting to use more buffer than is allocated, leading to a denial of service (DOS).

  • Where can I find more information about CVE-2022-0322?

    You can find more information about CVE-2022-0322 in the following references: [1] [2] [3].

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