CVE-2023-52513

medium

Published 2024-11-12 · Modified 2024-06-05

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CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.5

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix connection failure handling In case immediate MPA request processing fails, the newly created endpoint unlinks the listening endpoint and is ready to be dropped. This special case was not handled correctly by the code handling the later TCP socket close, causing a NULL dereference crash in siw_cm_work_handler() when dereferencing a NULL listener. We now also cancel the useless MPA timeout, if immediate MPA request processing fails. This patch furthermore simplifies MPA processing in general: Scheduling a useless TCP socket read in sk_data_ready() upcall is now surpressed, if the socket is already moved out of TCP_ESTABLISHED state.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Red Hat Errata — Red Hat Inc. · View original ↗ · Open-Errata-API

Description kernel: RDMA/siw: Fix connection failure handling Red Hat statement Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. CVSS v3: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H) Errata / fixed releases…

Workaround

for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Description

kernel: RDMA/siw: Fix connection failure handling

Red Hat statement

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS v3: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)

Errata / fixed releases

Product	Package	Advisory	Released
Red Hat Enterprise Linux 8	`kernel-rt-0:4.18.0-553.5.1.rt7.346.el8_10`	RHSA-2024:3627	2024-06-05T00:00:00Z
Red Hat Enterprise Linux 8	`kernel-0:4.18.0-553.5.1.el8_10`	RHSA-2024:3618	2024-06-05T00:00:00Z
Red Hat Enterprise Linux 9	`kernel-0:5.14.0-503.11.1.el9_5`	RHSA-2024:9315	2024-11-12T00:00:00Z
Red Hat Enterprise Linux 9	`kernel-0:5.14.0-503.11.1.el9_5`	RHSA-2024:9315	2024-11-12T00:00:00Z
Red Hat Enterprise Linux 9.4 Extended Update Support	`kernel-0:5.14.0-427.104.1.el9_4`	RHSA-2026:0173	2026-01-07T00:00:00Z

Package state

Product	Package	State
Red Hat Enterprise Linux 6	`kernel`	Not affected
Red Hat Enterprise Linux 7	`kernel`	Not affected
Red Hat Enterprise Linux 7	`kernel-rt`	Not affected
Red Hat Enterprise Linux 9	`kernel-rt`	Will not fix

Apply commands

bash fix

Apply RHSA-2024:3627 for Red Hat Enterprise Linux 8

yum update -y kernel-rt
# or:
dnf upgrade -y kernel-rt

Affected

Vendor	Product	Version
redhat	Red Hat Enterprise Linux 6	`Not affected`
redhat	Red Hat Enterprise Linux 7	`Not affected`
redhat	Red Hat Enterprise Linux 7	`Not affected`

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

AlmaLinux Fixed 1 release

Version	Status	Fixed in
8	Fixed	`kernel-rt-modules-4.18.0-553.5.1.rt7.346.el8_10.x86_64.rpm`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`6.5.8-1`
sid	Fixed	`6.5.8-1`
forky	Fixed	`6.5.8-1`
bullseye	Fixed	`5.10.205-1`
bookworm	Fixed	`6.1.64-1`

Red Hat Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

Rocky Linux Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.