| Name | CVE-2019-17263 |
| Description | In libyal libfwsi before 20191006, libfwsi_extension_block_copy_from_byte_stream in libfwsi_extension_block.c has a heap-based buffer over-read because rejection of an unsupported size only considers values less than 6, even though values of 6 and 7 are also unsupported. NOTE: the vendor has disputed this as described in the GitHub issue |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libfwsi (PTS) | stretch | 20170117-1 | vulnerable |
| buster | 20181227-1 | vulnerable | |
| bullseye, bookworm | 20181227-1.1 | vulnerable | |
| sid, trixie | 20181227-1.2 | vulnerable | |
| liblnk (PTS) | stretch | 20170111-1 | vulnerable |
| buster | 20181227-1 | vulnerable | |
| bullseye, bookworm | 20181227-1.1 | vulnerable | |
| sid, trixie | 20181227-1.2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libfwsi | source | (unstable) | (unfixed) | unimportant | ||
| liblnk | source | (unstable) | (unfixed) | unimportant |
https://github.com/libyal/libfwsi/issues/13
https://github.com/libyal/libfwsi/commit/54afa5c71d6c795a555dbcb1e160fea393b98fb3
Negligible/questionable security impact