CVE-2024-42246
Linux Kernel Remote Denial of Service Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket When using a BPF program on kernel_connect(), the call can return -EPERM. This causes xs_tcp_setup_socket() to loop forever, filling up the syslog and causing the kernel to potentially freeze up. Neil suggested: This will propagate -EPERM up into other layers which might not be ready to handle it. It might be safer to map EPERM to an error we would be more likely to expect from the network system - such as ECONNREFUSED or ENETDOWN. ECONNREFUSED as error seems reasonable. For programs setting a different error can be out of reach (see handling in 4fbac77d2d09) in particular on kernels which do not have f10d05966196 ("bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean"), thus given that it is better to simply remap for consistent behavior. UDP does handle EPERM in xs_udp_send_request().
INFO
Published Date :
Aug. 7, 2024, 4:15 p.m.
Last Modified :
Sept. 12, 2024, 12:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2024-42246.
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-2024-42246 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-42246 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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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 12, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/bc790261218952635f846aaf90bcc0974f6f62c6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/934247ea65bc5eca8bdb7f8c0ddc15cef992a5d6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/02ee1976edb21a96ce8e3fd4ef563f14cc16d041 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5d8254e012996cee1a0f9cc920531cb7e4d9a011 [No types assigned] -
Initial Analysis by [email protected]
Aug. 08, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/626dfed5fa3bfb41e0dffd796032b555b69f9cde No Types Assigned https://git.kernel.org/stable/c/626dfed5fa3bfb41e0dffd796032b555b69f9cde Patch Changed Reference Type https://git.kernel.org/stable/c/d6c686c01c5f12ff8f7264e0ddf71df6cb0d4414 No Types Assigned https://git.kernel.org/stable/c/d6c686c01c5f12ff8f7264e0ddf71df6cb0d4414 Patch Changed Reference Type https://git.kernel.org/stable/c/f2431e7db0fe0daccb2f06bb0d23740affcd2fa6 No Types Assigned https://git.kernel.org/stable/c/f2431e7db0fe0daccb2f06bb0d23740affcd2fa6 Patch Changed Reference Type https://git.kernel.org/stable/c/f388cfd913a2b96c05339a335f365795db1b36b6 No Types Assigned https://git.kernel.org/stable/c/f388cfd913a2b96c05339a335f365795db1b36b6 Patch Added CWE NIST CWE-835 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.17 up to (excluding) 6.1.100 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.41 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.10 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 07, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket When using a BPF program on kernel_connect(), the call can return -EPERM. This causes xs_tcp_setup_socket() to loop forever, filling up the syslog and causing the kernel to potentially freeze up. Neil suggested: This will propagate -EPERM up into other layers which might not be ready to handle it. It might be safer to map EPERM to an error we would be more likely to expect from the network system - such as ECONNREFUSED or ENETDOWN. ECONNREFUSED as error seems reasonable. For programs setting a different error can be out of reach (see handling in 4fbac77d2d09) in particular on kernels which do not have f10d05966196 ("bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean"), thus given that it is better to simply remap for consistent behavior. UDP does handle EPERM in xs_udp_send_request(). Added Reference kernel.org https://git.kernel.org/stable/c/f2431e7db0fe0daccb2f06bb0d23740affcd2fa6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d6c686c01c5f12ff8f7264e0ddf71df6cb0d4414 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f388cfd913a2b96c05339a335f365795db1b36b6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/626dfed5fa3bfb41e0dffd796032b555b69f9cde [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-2024-42246 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-2024-42246
weaknesses.