SARA / Free Tools / CVE / CVE-2018-10840

CVE-2018-10840 — Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr

Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image.

CVSS
5.2 MEDIUM
EPSS
0.10% (top 72.00%)
CWE
CWE-122
Published
2018-07-16T20:00:00.000Z
Last modified
2024-08-05T07:46:47.078Z
CVSS vector
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

01What is this vulnerability?

Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image.

02Affected products

VendorProductVersions
kernelheapbased buffer overflow in fs/ext4/xattr.c — n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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