CVE-2019-7308

NameCVE-2019-7308
Descriptionkernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.64-2fixed
stretch4.9.144-3vulnerable
stretch (security)4.9.110-3+deb9u6vulnerable
buster, sid4.19.28-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.19.20-1medium
linuxsourcejessie(not affected)

Notes

[jessie] - linux <not-affected> (Vulnerable code not present)
https://bugs.chromium.org/p/project-zero/issues/detail?id=1711
Fixed by: https://git.kernel.org/linus/979d63d50c0c0f7bc537bf821e056cc9fe5abd38
Fixed by: https://git.kernel.org/linus/d3bd7413e0ca40b60cf60d4003246d067cafdeda

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