CVE-2020-6839

NameCVE-2020-6839
DescriptionIn mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.
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 severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mruby (PTS)jessie1.0.0+20141015+gitb4cc962c-1fixed
stretch1.2.0+20161228+git30d5424a-1fixed
bullseye, sid, buster2.0.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mrubysource(unstable)(not affected)

Notes

- mruby <not-affected> (Vulnerable code not present)
https://github.com/mruby/mruby/issues/4929
Introduced by: https://github.com/mruby/mruby/commit/2532e625edc2457447369e36e2ecf7882d872ef9
Fixed by: https://github.com/mruby/mruby/commit/2124b9b4c95e66e63b1eb26a8dab49753b82fd6c

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