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redhatRedHatRHSA-2023:4151
HistoryJul 18, 2023 - 7:38 a.m.

(RHSA-2023:4151) Important: kernel security and bug fix update

2023-07-1807:38:44
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213

7.1 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

4 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:A/AC:H/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

13.4%

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • perf record -ag does not capture user space stack frames on s390x (BZ#2207745)

  • RHEL7.9 - kernel: handle new reply code FILTERED_BY_HYPERVISOR (BZ#2212672)

7.1 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

4 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:A/AC:H/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

13.4%