| Name | CVE-2019-14871 |
| Description | The REENT_CHECK macro (see newlib/libc/include/sys/reent.h) as used by REENT_CHECK_TM, REENT_CHECK_MISC, REENT_CHECK_MP and other newlib macros in versions prior to 3.3.0, does not check for memory allocation problems when the DEBUG flag is unset (as is the case in production firmware builds). |
| Source | CVE (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 Package | Release | Version | Status |
|---|
| newlib (PTS) | jessie | 2.1.0+git20140818.1a8323b-2 | vulnerable |
| stretch | 2.4.0.20160527-2 | vulnerable |
| buster | 3.1.0.20181231-1 | vulnerable |
| bullseye | 3.3.0-1 | fixed |
| bookworm | 3.3.0-1.3+deb12u1 | fixed |
| sid, trixie | 4.4.0.20231231-4 | fixed |
| picolibc (PTS) | bullseye | 1.5.1-2 | fixed |
| bookworm | 1.8-1 | fixed |
| sid, trixie | 1.8.8-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| newlib | source | wheezy | (unfixed) | end-of-life | | |
| newlib | source | (unstable) | 3.3.0-1 | | | |
| picolibc | source | (unstable) | 1.4.3-1 | | | |
Notes
[buster] - newlib <no-dsa> (Minor issue)
[stretch] - newlib <no-dsa> (Minor issue)
[jessie] - newlib <ignored> (Minor issue)
https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/
https://keithp.com/blogs/picolibc-string-float/