7.8high
CVE-2019-20172
Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address spa…
Published 6 y ago · modified 4 mo ago · JSON
CVSS
7.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 41%
Public exploits
0
none known
Summary
Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.
Exploit prediction (EPSS)
0.47% probability of exploitation in the next 30 days, higher than 41% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- github.com /SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9 · x_refsource_MISC, x_transferred
- github.com /Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2019-20172
- NVD: CVE-2019-20172
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