Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: ccree - Fix use after free in cc_cipher_exit() kfree_sensitive(ctx_p->user.key) will free the ctx_p->user.key. But ctx_p->user.key is still used in the next line, which will lead to a use after free. We can call kfree_sensitive() after dev_dbg() to avoid the uaf.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.17, < 5.10.110 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/25c358efee5153dfd240d4e0d3169d5bebe9cacdPatch
- https://git.kernel.org/stable/c/335bf1fc74f775a8255257aa3e33763f2257b676Patch
- https://git.kernel.org/stable/c/3d950c34074ed74d2713c3856ba01264523289e6Patch
- https://git.kernel.org/stable/c/c93017c8d5ebf55a4e453ac7c84cc84cf92ab570Patch
- https://git.kernel.org/stable/c/cffb5382bd8d3cf21b874ab5b84bf7618932286bPatch
FAQ
What is CVE-2022-49258?
CVE-2022-49258 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: crypto: ccree - Fix use after free in cc_cipher_exit() kfree_sensitive(ctx_p->user.key) will free the ctx_p->user.key. But ctx_p->...
How severe is CVE-2022-49258?
CVE-2022-49258 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49258?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.