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CVE-2019-19767
The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize…
Medium5.5EPSS 2.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (13)
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.kernel.org/show_bug.cgi?id=205707 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.kernel.org/show_bug.cgi?id=205609 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/torvalds/linux/commit/4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a (opens in a new tab)x_refsource_MISCx_transferred
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20200103-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20200118 [SECURITY] [DLA 2068-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4258-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4287-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4287-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4284-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- openSUSE-SU-2020:0336 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2019-19767)Record last updated .