VDB
CVE-2023-53796
CVE-2023-53796
PUBLISHED
CVSS 8.699999809265137 HIGH
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix information leak in f2fs_move_inline_dirents() When converting an inline directory to a regular one, f2fs is leaking uninitialized memory to disk because it doesn't initialize the entire directory block. Fix this by zero-initializing the block. This bug was introduced by commit 4ec17d688d74 ("f2fs: avoid unneeded initializing when converting inline dentry"), which didn't consider the security implications of leaking uninitialized memory to disk. This was found by running xfstest generic/435 on a KMSAN-enabled kernel.
EPSS 0.04% · 12.5th percentile
Risk Scores
CVSS 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.04%
12.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| linux | linux_kernel | 4.3, 4.3, 4.3 |
| Linux | Linux | 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca, 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca, 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca |
Exploit Intelligence
- https://git.kernel.org/stable/c/4e3b4b170bd43db1d8a93a6bd0ea434b17cc86f7 (circl)
- https://git.kernel.org/stable/c/a6807ef0f3b3d8508d3b07a2e35de8a91820a014 (circl)
- https://git.kernel.org/stable/c/2bef8314fcf94ddc27e22d03f237c0fafd00de33 (circl)
- https://git.kernel.org/stable/c/00b5587326625d0fddb2a5f5a3d4acd950102ace (circl)
- https://git.kernel.org/stable/c/117d4f6687b1f74423b5d398ea95c63b262a8e73 (circl)
- https://git.kernel.org/stable/c/f07a8d61b6ea81bb3cbe0638af40f8824d6147fd (circl)
- https://git.kernel.org/stable/c/eebaecef0095bb8f493c03982da75c6e7bae1056 (circl)
- https://git.kernel.org/stable/c/9a5571cff4ffcfc24847df9fd545cc5799ac0ee5 (circl)
Timeline
- Dec 9, 2025 EPSS Score
- Dec 9, 2025 CVE Published
- Dec 13, 2025 EPSS Score
- Dec 17, 2025 EPSS Score
- Dec 22, 2025 EPSS Score
- Dec 26, 2025 EPSS Score
- Dec 30, 2025 EPSS Score
- Jan 3, 2026 EPSS Score
- Jan 7, 2026 EPSS Score
- Jan 12, 2026 EPSS Score
- Jan 16, 2026 EPSS Score
- Jan 20, 2026 EPSS Score
References
- https://git.kernel.org/stable/c/4e3b4b170bd43db1d8a93a6bd0ea434b17cc86f7 url
- https://git.kernel.org/stable/c/a6807ef0f3b3d8508d3b07a2e35de8a91820a014 url
- https://git.kernel.org/stable/c/2bef8314fcf94ddc27e22d03f237c0fafd00de33 url
- https://git.kernel.org/stable/c/00b5587326625d0fddb2a5f5a3d4acd950102ace url
- https://git.kernel.org/stable/c/117d4f6687b1f74423b5d398ea95c63b262a8e73 url
- https://git.kernel.org/stable/c/f07a8d61b6ea81bb3cbe0638af40f8824d6147fd url
- https://git.kernel.org/stable/c/eebaecef0095bb8f493c03982da75c6e7bae1056 url
- https://git.kernel.org/stable/c/9a5571cff4ffcfc24847df9fd545cc5799ac0ee5 url
- https://nvd.nist.gov/vuln/detail/CVE-2023-53796 advisory