| Name | CVE-2018-19876 |
| Description | cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 915801, 916389 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| cairo (PTS) | jessie, jessie (lts) | 1.14.0-2.1+deb8u3 | fixed |
| stretch (security), stretch (lts), stretch | 1.14.8-1+deb9u1 | fixed |
| buster | 1.16.0-4+deb10u1 | fixed |
| bullseye | 1.16.0-5 | fixed |
| bookworm | 1.16.0-7 | fixed |
| sid, trixie | 1.18.2-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| cairo | source | wheezy | (not affected) | | | |
| cairo | source | jessie | (not affected) | | | |
| cairo | source | stretch | (not affected) | | | |
| cairo | source | (unstable) | 1.16.0-4 | | | 915801, 916389 |
Notes
[stretch] - cairo <not-affected> (Vulnerable code introduced later)
[jessie] - cairo <not-affected> (Vulnerable code introduced later)
https://bugs.webkit.org/show_bug.cgi?id=191595
https://gitlab.freedesktop.org/cairo/cairo/merge_requests/5
Code introduced in
https://gitlab.freedesktop.org/cairo/cairo/commit/616fb7a9f2612f6cc3472542a70ba3e8ccf16584 and
https://gitlab.freedesktop.org/cairo/cairo/commit/0fd0fd0ae9ad8cfb177bb844091de98c0235917e,
and became vulnerable with freetype 2.9 which allows to define a different allocator. Partially
fixed in https://gitlab.freedesktop.org/cairo/cairo/commit/c3659d7ef662b55949307ece7b1f613a7dc32620
https://gitlab.freedesktop.org/cairo/cairo/commit/90e85c2493fdfa3551f202ff10282463f1e36645
[wheezy] - cairo <not-affected> (Vulnerable code introduced later)