| Name | CVE-2017-6891 |
| Description | Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-950-1, DSA-3861-1 |
| Debian Bugs | 863186 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libtasn1-6 (PTS) | bullseye | 4.16.0-2+deb11u1 | fixed |
| bullseye (security) | 4.16.0-2+deb11u2 | fixed | |
| bookworm, bookworm (security) | 4.19.0-2+deb12u1 | fixed | |
| forky, sid, trixie | 4.20.0-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libtasn1-3 | source | wheezy | 2.13-2+deb7u4 | DLA-950-1 | ||
| libtasn1-3 | source | (unstable) | (unfixed) | |||
| libtasn1-6 | source | jessie | 4.2-3+deb8u3 | DSA-3861-1 | ||
| libtasn1-6 | source | (unstable) | 4.10-1.1 | 863186 |
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/
https://gitlab.com/gnutls/libtasn1/commit/5520704d075802df25ce4ffccc010ba1641bd484