Description
Buffer overflow in the main_get_appheader function in xdelta3-main.h in xdelta3 before 3.0.9 allows remote attackers to execute arbitrary code via a crafted input file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | xdelta3 | 3.0.8-dfsg-1.1 | — |
| Debian 13 | xdelta3 | 3.0.8-dfsg-1.1 | — |
| Debian 12 | xdelta3 | 3.0.8-dfsg-1.1 | — |
| Debian 8 | xdelta3 | 3.0.8-dfsg-1+deb8u1 | DSA-3484-1 |
| Debian 7 | xdelta3 | 3.0.0.dfsg-1+deb7u1 | DSA-3484-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | xdelta3 | 0y.dfsg-1+deb6u1 | DLA-417-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | xdelta3 | 3.0.7-dfsg-2ubuntu0.2 | USN-2901-1 |
Advisories 3
- DLA-417-1 xdelta3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3484-1 xdelta3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2901-1 xdelta3 vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
References
- [oss-security] 20160208 Re: CVE request - buffer overflow in xdelta3 before 3.0.9 mailing-list
- https://github.com/jmacd/xdelta-devel/commit/ef93ff74203e030073b898c05e8b4860b5d09ef2
- USN-2901-1 vendor-advisory
- DSA-3484 vendor-advisory
- openSUSE-SU-2016:0524 vendor-advisory
- GLSA-201701-40 vendor-advisory
- 83109 vdb-entry
- openSUSE-SU-2016:0530 vendor-advisory
- [oss-security] 20160208 CVE request - buffer overflow in xdelta3 before 3.0.9 mailing-list