| Name | CVE-2020-12740 |
| Description | tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ipv6_next() at common/get.c. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tcpreplay (PTS) | jessie | 3.4.4-2+deb8u1 | fixed |
| stretch | 3.4.4-3 | vulnerable |
| buster | 4.3.1-1 | vulnerable |
| bullseye | 4.3.3-2 | fixed |
| bookworm | 4.4.3-1 | fixed |
| sid, trixie | 4.5.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| tcpreplay | source | wheezy | (unfixed) | end-of-life | | |
| tcpreplay | source | jessie | (not affected) | | | |
| tcpreplay | source | (unstable) | 4.3.3-1 | unimportant | | |
Notes
[jessie] - tcpreplay <not-affected> (Vulnerable code added later)
https://github.com/appneta/tcpreplay/issues/576
https://github.com/appneta/tcpreplay/pull/590
Fixed with: https://github.com/appneta/tcpreplay/issues/578
--fuzz-seed in PoC not present until version 4.2.0
Crash in CLI tool, no security impact