CVE-2019-19449

NameCVE-2019-19449
DescriptionIn 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).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.304-1vulnerable
bullseye5.10.209-2vulnerable
bullseye (security)5.10.205-2vulnerable
bookworm6.1.76-1vulnerable
bookworm (security)6.1.69-1vulnerable
trixie6.6.15-2vulnerable
sid6.7.9-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)(unfixed)

Notes

[bookworm] - linux <postponed> (Minor issue, revisit once fixed upstream)
[bullseye] - linux <postponed> (Minor issue, revisit once fixed upstream)
[buster] - linux <postponed> (Minor issue, revisit once fixed upstream)
[stretch] - linux <ignored> (f2fs is not supportable)
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19449

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