PT-2019-5534 · Linux+4 · Linux Kernel+4

Yihui Zeng · Published 2019-10-31 · Updated 2021-10-26 · CVE-2020-10773

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to incorrect handling of null bytes or null characters in data exchange within the s390/s390x component of the Linux kernel's memory manager. This can lead to the disclosure of protected information. A local user can exploit this flaw to access kernel data, potentially revealing sensitive information. The flaw is also associated with incorrect writing to the /proc/sys/vm/cmm timeout file.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-626

Related Identifiers

ALSA-2020:4431

BDU:2020-03831

CESA-2020_4431

CVE-2020-10773

OPENSUSE-SU-2020:0935-1

OPENSUSE-SU-2020:1153-1

OPENSUSE-SU-2020_0935-1

OPENSUSE-SU-2020_1153-1

OPENSUSE-SU-2021:0242-1

OPENSUSE-SU-2021_0242-1

RHSA-2020:4431

RHSA-2020_4431

SUSE-SU-2020:14442-1

SUSE-SU-2020:2027-1

SUSE-SU-2020:2103-1

SUSE-SU-2020:2105-1

SUSE-SU-2020:2106-1

SUSE-SU-2020:2107-1

SUSE-SU-2020:2119-1

SUSE-SU-2020:2121-1

SUSE-SU-2020:2122-1

SUSE-SU-2020:2134-1

SUSE-SU-2020:2152-1

SUSE-SU-2020:2156-1

SUSE-SU-2020:2478-1

SUSE-SU-2020:2487-1

Affected Products

Almalinux

Centos

Linux Kernel

Red Hat

Suse

References · 1161

• https://osv.dev/vulnerability/SUSE-SU-2020:2105-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2119-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-4431.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2027-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2478-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2487-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-10773 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-10773 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2152-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2134-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-10773 · Security Note
• https://osv.dev/vulnerability/ALSA-2020:4431 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:1153-1 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b8e51a6a9db94bc1fb18ae831b3dab106b5a4b5f · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-10773 · Security Note