CVE-2022-48757
Linux Kernel exposes information in Net namespace via /proc/net/ptype
Description
In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL.
INFO
Published Date :
June 20, 2024, 12:15 p.m.
Last Modified :
June 20, 2024, 12:43 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2022-48757.
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The following list is the news that have been mention
CVE-2022-48757 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-48757 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 Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 20, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL. Added Reference kernel.org https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176bee [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888 [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-2022-48757 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-2022-48757
weaknesses.