| Name | CVE-2017-9445 |
| Description | In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it. |
| 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 | 866147 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| systemd (PTS) | bullseye | 247.3-7+deb11u5 | fixed |
| bullseye (security) | 247.3-7+deb11u6 | fixed |
| bookworm | 252.36-1~deb12u1 | fixed |
| sid, trixie | 257.5-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| systemd | source | wheezy | (not affected) | | | |
| systemd | source | jessie | (not affected) | | | |
| systemd | source | stretch | 232-25+deb9u1 | | | |
| systemd | source | (unstable) | 233-10 | | | 866147 |
Notes
[jessie] - systemd <not-affected> (Vulnerable code not present)
[wheezy] - systemd <not-affected> (Vulnerable code not present)
Introduced by: https://github.com/systemd/systemd/commit/a0166609f782da91710dea9183d1bf138538db37
https://www.openwall.com/lists/oss-security/2017/06/27/8