PT-2022-7648 · Linux+3 · Linux Kernel+3
Udipto Goswami
·
Published
2022-01-31
·
Updated
2024-09-16
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CVE-2022-48822
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a use-after-free vulnerability in the Linux kernel's USB gadget driver, specifically in the
ffs func eps disable() function. This vulnerability occurs due to a race condition between ffs func eps disable() and ffs epfile release(), where the latter frees up the read buffer and destroys ffs->epfiles, marking it as NULL. Meanwhile, ffs func eps disable() proceeds with the stale value of epfile and attempts to free the already freed read buffer, causing a use-after-free condition. This can potentially impact the confidentiality, integrity, and availability of protected information.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os
Suse