| Name | CVE-2020-10745 |
| Description | A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios over TCP/IP. This flaw allows a remote attacker could to cause the Samba server to consume excessive CPU use, resulting in a denial of service. This highest threat from this vulnerability is to system availability. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2463-1, ELA-317-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| samba (PTS) | jessie, jessie (lts) | 2:4.2.14+dfsg-0+deb8u16 | fixed |
| stretch (security) | 2:4.5.16+dfsg-1+deb9u4 | fixed |
| stretch (lts), stretch | 2:4.5.16+dfsg-1+deb9u5 | fixed |
| buster (security), buster, buster (lts) | 2:4.9.5+dfsg-5+deb10u5 | vulnerable |
| bullseye (security), bullseye | 2:4.13.13+dfsg-1~deb11u6 | fixed |
| bookworm (security), bookworm | 2:4.17.12+dfsg-0+deb12u1 | fixed |
| trixie | 2:4.21.2+dfsg-3 | fixed |
| sid | 2:4.21.2+dfsg-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| samba | source | jessie | 2:4.2.14+dfsg-0+deb8u14 | | ELA-317-1 | |
| samba | source | stretch | 2:4.5.16+dfsg-1+deb9u3 | | DLA-2463-1 | |
| samba | source | (unstable) | 2:4.12.5+dfsg-1 | | | |
Notes
[buster] - samba <postponed> (Minor issue, fix along in next DSA)
https://www.samba.org/samba/security/CVE-2020-10745.html