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No exploitation reportedFix available

CVE-2019-19449

No exploitation reported by the sources we read.

  • Published2019-12-08
  • WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can lead to slab-out-of-bounds read access in f2fs_build_segment_manager in fs/f2fs/segment.c, related to init_min_max_mtime in fs/f2fs/segment.c (because the second argument to get_seg_entry is not validated).

Timeline

dates in UTC
  1. 2019-12-0802:15CVE publishedNVD

Versions per branch

NVD
Linux linux kernel
BranchAffectedFixed in
5.0= 5.0.21no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • linuxUbuntu:Pro:16.04:LTSall versions · fixed in 4.4.0-222.255
  • linuxUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • linuxUbuntu:20.04:LTSall versions · fixed in 5.4.0-90.101
  • linuxUbuntu:18.04:LTSall versions · fixed in 4.15.0-162.170
  • linuxRoot:Debian:13all versions · fixed in 6.12.116-1.aikido.165and 1 other package
  • linuxRoot:Debian:12all versions · fixed in 6.1.190-1.aikido.167and 1 other package
  • linuxRoot:Debian:11all versions · fixed in 5.10.262-1.aikido.114and 1 other package
  • linuxRoot:Debian:11all versions · fixed in 5.10.262-1.aikido.113and 1 other package

56 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-19449 Red Hat Product Security

    kernel: mounting a crafted f2fs filesystem image can lead to slab-out-of-bounds read access in f2fs_build_segment_manager in fs/f2fs/segment.c

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2019-12-08
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-j4mc-42j4-7jgg

Frequently asked questions

What is CVE-2019-19449?

In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can lead to slab-out-of-bounds read access in f2fs_build_segment_manager in fs/f2fs/segment.c, related to init_min_max_mtime in fs/f2fs/segment.c (because the second argument to get_seg_entry is not validated).

Is CVE-2019-19449 actively exploited?

Active exploitation of CVE-2019-19449 has not been confirmed. Its EPSS score was 2.1% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19449?

CVE-2019-19449 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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