| Name | CVE-2019-15903 |
| Description | In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-1912-1, DLA-1987-1, DLA-1997-1, DSA-4530-1, DSA-4549-1, DSA-4571-1 |
| NVD severity | medium |
| Debian Bugs | 939394 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| chromium (PTS) | stretch (security), stretch | 73.0.3683.75-1~deb9u1 | fixed |
| buster | 87.0.4280.141-0.1~deb10u1 | fixed | |
| buster (security) | 88.0.4324.182-1~deb10u1 | fixed | |
| bullseye, sid | 88.0.4324.182-1 | fixed | |
| expat (PTS) | stretch (security), stretch | 2.2.0-2+deb9u3 | fixed |
| buster, buster (security) | 2.2.6-2+deb10u1 | fixed | |
| bullseye | 2.2.10-1 | fixed | |
| sid | 2.2.10-2 | fixed | |
| firefox (PTS) | sid | 86.0-1 | fixed |
| firefox-esr (PTS) | stretch | 68.10.0esr-1~deb9u1 | fixed |
| stretch (security) | 78.8.0esr-1~deb9u1 | fixed | |
| buster | 78.7.0esr-1~deb10u1 | fixed | |
| buster (security) | 78.8.0esr-1~deb10u1 | fixed | |
| bullseye | 78.7.0esr-1 | fixed | |
| sid | 78.8.0esr-1 | fixed | |
| thunderbird (PTS) | stretch | 1:68.10.0-1~deb9u1 | fixed |
| stretch (security) | 1:78.7.0-1~deb9u1 | fixed | |
| buster | 1:78.6.0-1~deb10u1 | fixed | |
| buster (security) | 1:78.7.0-1~deb10u1 | fixed | |
| bullseye | 1:78.7.1-1 | fixed | |
| sid | 1:78.8.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| chromium | source | (unstable) | (not affected) | |||
| expat | source | jessie | 2.1.0-6+deb8u6 | DLA-1912-1 | ||
| expat | source | stretch | 2.2.0-2+deb9u3 | DSA-4530-1 | ||
| expat | source | buster | 2.2.6-2+deb10u1 | DSA-4530-1 | ||
| expat | source | (unstable) | 2.2.7-2 | 939394 | ||
| firefox | source | (unstable) | 70.0-1 | |||
| firefox-esr | source | jessie | 68.2.0esr-1~deb8u1 | DLA-1987-1 | ||
| firefox-esr | source | stretch | 68.2.0esr-1~deb9u2 | DSA-4549-1 | ||
| firefox-esr | source | buster | 68.2.0esr-1~deb10u1 | DSA-4549-1 | ||
| firefox-esr | source | (unstable) | 68.2.0esr-1 | |||
| thunderbird | source | jessie | 1:68.2.2-1~deb8u1 | DLA-1997-1 | ||
| thunderbird | source | stretch | 1:68.2.2-1~deb9u1 | DSA-4571-1 | ||
| thunderbird | source | buster | 1:68.2.2-1~deb10u1 | DSA-4571-1 | ||
| thunderbird | source | (unstable) | 1:68.2.1-1 |
- chromium <not-affected> (uses system libexpat)
https://github.com/libexpat/libexpat/commit/c20b758c332d9a13afbbb276d30db1d183a85d43
https://github.com/libexpat/libexpat/issues/317
https://github.com/libexpat/libexpat/pull/318
https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/#CVE-2019-15903
https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-15903
https://www.mozilla.org/en-US/security/advisories/mfsa2019-35/#CVE-2019-15903
src:hromium uses the system expat library.