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CVE-2023-54300

UnknownEPSS 0.19%

Last modified

CVE-2023-54300 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx For the reasons also described in commit b383e8abed41 ("wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()"), ath9k_htc_rx_msg() should validate pkt_len before accessing the SKB. For example, the obtained SKB may have been badly constructed with pkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr but after being processed in ath9k_htc_rx_msg() and passed to ath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI command header which should be located inside its data payload. Implement sanity checking inside ath9k_wmi_ctrl_rx(). EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx For the reasons also described in commit b383e8abed41 ("wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()"), ath9k_htc_rx_msg() should validate pkt_len before accessing the SKB. For example, the obtained SKB may have been badly constructed with pkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr but after being processed in ath9k_htc_rx_msg() and passed to ath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI command header which should be located inside its data payload. Implement sanity checking inside ath9k_wmi_ctrl_rx(). Otherwise, uninit memory can be referenced. Tested on Qualcomm Atheros Communications AR9271 802.11n . Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Metrics

EPSS Probability
0.19%

9.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= fb9987d0f748c983bb795a86f47522313f701a08, < 0bc12e41af4e3ae1f0efecc377f0514459df0707; >= fb9987d0f748c983bb795a86f47522313f701a08, < 28259ce4f1f1f9ab37fa817756c89098213d2fc0; >= fb9987d0f748c983bb795a86f47522313f701a08, < 90e3c10177573b8662ac9858abd9bf731d5d98e0; >= fb9987d0f748c983bb795a86f47522313f701a08, < 250efb4d3f5b32a115ea6bf25437ba44a1b3c04f; >= fb9987d0f748c983bb795a86f47522313f701a08, < ad5425e70789c29b93acafb5bb4629e4eb908296; >= fb9987d0f748c983bb795a86f47522313f701a08, < d1c2ff2bd84c3692c9df267a2b991ce92bfca8ef; >= fb9987d0f748c983bb795a86f47522313f701a08, < 8ed572e52714593b209e3aa352406aff84481179; >= fb9987d0f748c983bb795a86f47522313f701a08, < 75acec91aeaa07375cd5f418069e61b16d39bbad; >= fb9987d0f748c983bb795a86f47522313f701a08, < f24292e827088bba8de7158501ac25a59b064953
LinuxLinux2.6.35

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2023-54300?
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx For the reasons also described in commit b383e8abed41 ("wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()"), ath9k_htc_rx_msg() should validate pkt_len before accessing the SKB. For example, the obtained SKB may have been badly constructed with pkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr but after being processed in ath9k_htc_rx_msg() and passed to ath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI command header which should be located inside its data payload. Implement sanity checking inside ath9k_wmi_ctrl_rx(). Otherwise, uninit memory can be referenced. Tested on Qualcomm Atheros Communications AR9271 802.11n . Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
How severe is CVE-2023-54300?
Severity scoring for CVE-2023-54300 is pending analysis. The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2023-54300?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST