| Name | CVE-2007-4770 |
| Description | libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero (aka \0), which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-1511-1 |
| Debian Bugs | 463688 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| icu (PTS) | jessie, jessie (lts) | 52.1-8+deb8u9 | fixed |
| stretch (security), stretch (lts), stretch | 57.1-6+deb9u5 | fixed | |
| buster | 63.1-6+deb10u3 | fixed | |
| buster (security), buster (lts) | 63.1-6+deb10u2 | fixed | |
| bullseye | 67.1-7 | fixed | |
| bookworm | 72.1-3 | fixed | |
| sid, trixie | 72.1-5 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| icu | source | etch | 3.6-2etch1 | DSA-1511-1 | ||
| icu | source | (unstable) | 3.8-6 | 463688 |