| Name | CVE-2020-11958 |
| Description | re2c 1.3 has a heap-based buffer overflow in Scanner::fill in parse/scanner.cc via a long lexeme. |
| 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 | 963158 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| re2c (PTS) | jessie | 0.13.5-1 | fixed |
| stretch | 0.16-2 | fixed |
| buster | 1.1.1-1 | fixed |
| bullseye | 2.0.3-1 | fixed |
| bookworm | 3.0-2 | fixed |
| sid, trixie | 3.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| re2c | source | wheezy | (unfixed) | end-of-life | | |
| re2c | source | jessie | (not affected) | | | |
| re2c | source | stretch | (not affected) | | | |
| re2c | source | buster | (not affected) | | | |
| re2c | source | (unstable) | 1.3-2 | | | 963158 |
Notes
[buster] - re2c <not-affected> (Vulnerability introduced later)
[stretch] - re2c <not-affected> (Vulnerability introduced later)
[jessie] - re2c <not-affected> (Vulnerability introduced later)
http://blogs.gentoo.org/ago/2020/04/19/re2c-heap-overflow-in-scannerfill-scanner-cc/
Logical error introduced in: https://github.com/skvadrik/re2c/commit/2f3e597abce36fb7f41413373308b7f13fc98181 (1.2)
Vulnerability introduced in: https://github.com/skvadrik/re2c/commit/1edd26a35457c5835afd58b8fa8330d33e7a1192 (1.2)
https://github.com/skvadrik/re2c/commit/c4603ba5ce229db83a2a4fb93e6d4b4e3ec3776a#commitcomment-38652070
Fixed by: https://github.com/skvadrik/re2c/commit/c4603ba5ce229db83a2a4fb93e6d4b4e3ec3776a