CVE-2020-8428
- State
- Published
- Severity
- Not scored
- Published
- Jan 28, 2020
- Updated
- Aug 4, 2024
- Reserved
- Jan 28, 2020
Description
fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://www.openwall.com/lists/oss-security/2020/01/28/2
- https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6
- [oss-security] 20200129 Re: Linux kernel: user-triggerable read-after-free crash or 1-bit infoleak oracle in open(2)mailing-list
- [oss-security] 20200202 Re: Linux kernel: user-triggerable read-after-free crash or 1-bit infoleak oracle in open(2)mailing-list
- https://security.netapp.com/advisory/ntap-20200313-0003/
- openSUSE-SU-2020:0336vendor-advisory
- USN-4320-1vendor-advisory
- USN-4318-1vendor-advisory
- http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html
- USN-4324-1vendor-advisory
- USN-4325-1vendor-advisory
- USN-4319-1vendor-advisory
- DSA-4667vendor-advisory
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security updatemailing-list
- DSA-4698vendor-advisory
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