7.0
HIGH
CVE-2023-6546
Linux Kernel VMware GSM 0710 TTY Multiplexor Race Condition Privilege Escalation Vulnerability
Description

A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.

INFO

Published Date :

Dec. 21, 2023, 8:15 p.m.

Last Modified :

Sept. 14, 2024, 12:15 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.0
Public PoC/Exploit Available at Github

CVE-2023-6546 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-6546 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
1 Redhat enterprise_linux
1 Fedoraproject fedora

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Python Makefile C

Updated: 1 week, 4 days ago
119 stars 14 fork 14 watcher
Born at : Jan. 16, 2024, 9:51 p.m. This repo has been linked 1 different CVEs too.

Docker image for MarkLogic Server

database docker marklogic

Makefile Shell RobotFramework XQuery

Updated: 5 months ago
8 stars 12 fork 12 watcher
Born at : Aug. 16, 2021, 9:29 p.m. This repo has been linked 16 different CVEs too.

A collection of links related to Linux kernel security and exploitation

linux-kernel kernel-exploitation exploit privilege-escalation security

Updated: 1 day, 12 hours ago
5639 stars 911 fork 911 watcher
Born at : Nov. 13, 2016, 10:21 p.m. This repo has been linked 239 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-6546 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-6546 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Sep. 14, 2024

    Action Type Old Value New Value
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/10/21
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/17/1
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/11/9
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/11/7
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/10/18
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/16/2
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/12/2
    Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/12/1
  • CVE Modified by [email protected]

    Aug. 02, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:4970 [No types assigned]
  • CVE Modified by [email protected]

    Jul. 23, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:4729 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:4731 [No types assigned]
  • CVE Modified by [email protected]

    Jul. 16, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:4577 [No types assigned]
  • CVE Modified by [email protected]

    Jul. 08, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2093 [No types assigned]
  • CVE Modified by [email protected]

    May. 23, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 08, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2697 [No types assigned]
  • CVE Modified by [email protected]

    May. 01, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/10/18 [No types assigned]
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/16/2 [No types assigned]
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/12/2 [No types assigned]
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/12/1 [No types assigned]
  • CVE Modified by [email protected]

    May. 01, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/10/21 [No types assigned]
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/17/1 [No types assigned]
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/11/9 [No types assigned]
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/04/11/7 [No types assigned]
  • CVE Modified by [email protected]

    Apr. 30, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2621 [No types assigned]
  • CVE Modified by [email protected]

    Apr. 30, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2394 [No types assigned]
  • CVE Modified by [email protected]

    Apr. 03, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1614 [No types assigned]
  • CVE Modified by [email protected]

    Apr. 02, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1607 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1612 [No types assigned]
  • CVE Modified by [email protected]

    Mar. 13, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1306 [No types assigned]
  • CVE Modified by [email protected]

    Mar. 12, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1055 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1250 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1253 [No types assigned]
  • CVE Modified by [email protected]

    Feb. 28, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1018 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:1019 [No types assigned]
  • CVE Modified by [email protected]

    Feb. 22, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0937 [No types assigned]
  • CVE Modified by [email protected]

    Feb. 21, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0930 [No types assigned]
    Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    Jan. 10, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527 [No types assigned]
  • Initial Analysis by [email protected]

    Jan. 03, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-6546 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-6546 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2255498 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2255498 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3 No Types Assigned https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3 Patch
    Added CWE NIST CWE-362
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.5 *cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Dec. 21, 2023

    Action Type Old Value New Value
    Added Description A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.
    Added Reference Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-6546 [No types assigned]
    Added Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2255498 [No types assigned]
    Added Reference Red Hat, Inc. https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3 [No types assigned]
    Added CWE Red Hat, Inc. CWE-416
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-6546 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-6546 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} -0.04%

score

0.09472

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability