Buffer overflow in Linux
CVE-2024-46688
In the Linux kernel, the following vulnerability has been resolved: erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails If z_erofs_gbuf_growsize() partially fails on a global buffer due to memory allocation failure or fault injection (as reported by syzbot [1]), new pages need to be freed by comparing to the existing pages to avoid memory leaks. However, the old gbuf->pages[] array may not be large enough, which can lead to null-ptr-deref or out-of-bound access. Fix this by checking against gbuf->nrpages in advance. [1] https://lore.kernel.org/r/000000000000f7b96e062018c6e3@google.com
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (8.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Linux — versions d6db47e571dcaecaeaafa8840d00ae849ae3907b, 6.10, 0
- Linux Kernel — versions 6.11
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2024-46688?
- CVE-2024-46688 is a medium-severity vulnerability in Linux, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2024-09-13.
- How severe is CVE-2024-46688?
- Medium severity. CVSS v3 base score is 5.5 out of 10.