| Name | CVE-2016-9954 |
| Description | The backtrack compilation code in the Irregex package (aka IrRegular Expressions) before 0.9.6 for Scheme allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression with a repeating pattern. |
| 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 | 851278 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| chicken (PTS) | buster | 4.13.0-1 | fixed |
| bullseye | 5.2.0-2 | fixed |
| bookworm | 5.3.0-1 | fixed |
| sid, trixie | 5.3.0-1.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| chicken | source | (unstable) | 4.12.0-0.2 | low | | 851278 |
Notes
[stretch] - chicken <no-dsa> (Minor issue)
[jessie] - chicken <no-dsa> (Minor issue)
[wheezy] - chicken <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2016/12/14/18
https://github.com/ashinn/irregex/commit/a16ffc86eca15fca9e40607d41de3cea9cf868f1
For chicken vulnerable code in ./irregex-core.scm