Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2022-49326 | First vendor Publication | 2025-02-26 |
Vendor | Cve | Last vendor Modification | 2025-03-13 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | |||
---|---|---|---|
Overall CVSS Score | 5.5 | ||
Base Score | 5.5 | Environmental Score | 5.5 |
impact SubScore | 3.6 | Temporal Score | 5.5 |
Exploitabality Sub Score | 1.8 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | Low | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | None |
Integrity Impact | None | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : | |||
---|---|---|---|
Cvss Base Score | N/A | Attack Range | N/A |
Cvss Impact Score | N/A | Attack Complexity | N/A |
Cvss Expoit Score | N/A | Authentication | N/A |
Calculate full CVSS 2.0 Vectors scores |
Detail
In the Linux kernel, the following vulnerability has been resolved: rtl818x: Prevent using not initialized queues Using not existing queues can panic the kernel with rtl8180/rtl8185 cards. Ignore the skb priority for those cards, they only have one tx queue. Pierre Asselin (pa@panix.com) reported the kernel crash in the Gentoo forum: https://forums.gentoo.org/viewtopic-t-1147832-postdays-0-postorder-asc-start-25.html He also confirmed that this patch fixes the issue. In summary this happened: After updating wpa_supplicant from 2.9 to 2.10 the kernel crashed with a "divide error: 0000" when connecting to an AP. Control port tx now tries to use IEEE80211_AC_VO for the priority, which wpa_supplicants starts to use in 2.10. Since only the rtl8187se part of the driver supports QoS, the priority of the skb is set to IEEE80211_AC_BE (2) by mac80211 for rtl8180/rtl8185 cards. rtl8180 is then unconditionally reading out the priority and finally crashes on drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c line 544 without this patch: "ring->entries" is zero for rtl8180/rtl8185 cards, tx_ring[2] never got initialized. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49326 |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
Date | Informations |
---|---|
2025-06-26 02:09:33 |
|
2025-06-25 12:22:24 |
|
2025-06-24 02:14:09 |
|
2025-05-27 02:10:15 |
|
2025-03-29 03:14:33 |
|
2025-03-28 13:34:53 |
|
2025-03-28 02:56:58 |
|
2025-03-19 00:21:07 |
|
2025-03-18 00:21:10 |
|
2025-03-14 00:21:37 |
|
2025-02-26 17:20:32 |
|