CVE-2023-52633
Ubuntu Linux Kernel Time Travel Timer Interrupt Handling Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In 'basic' time-travel mode (without =inf-cpu or =ext), we still get timer interrupts. These can happen at arbitrary points in time, i.e. while in timer_read(), which pushes time forward just a little bit. Then, if we happen to get the interrupt after calculating the new time to push to, but before actually finishing that, the interrupt will set the time to a value that's incompatible with the forward, and we'll crash because time goes backwards when we do the forwarding. Fix this by reading the time_travel_time, calculating the adjustment, and doing the adjustment all with interrupts disabled.
INFO
Published Date :
April 2, 2024, 7:15 a.m.
Last Modified :
March 17, 2025, 3:17 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.3
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-52633.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-52633 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-52633 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.
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Initial Analysis by [email protected]
Mar. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 5.15.149 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.7.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 6.1.77 Added Reference Type CVE: https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab Added Reference https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 Added Reference https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c Added Reference https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 Added Reference https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 02, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In 'basic' time-travel mode (without =inf-cpu or =ext), we still get timer interrupts. These can happen at arbitrary points in time, i.e. while in timer_read(), which pushes time forward just a little bit. Then, if we happen to get the interrupt after calculating the new time to push to, but before actually finishing that, the interrupt will set the time to a value that's incompatible with the forward, and we'll crash because time goes backwards when we do the forwarding. Fix this by reading the time_travel_time, calculating the adjustment, and doing the adjustment all with interrupts disabled. Added Reference kernel.org https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-52633 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-2023-52633
weaknesses.