Description
Aria2 version 1.37.0 and below is affected by a Divide By Zero issue in src/bittorrent_helper.cc, which allows a remote malicious user to cause a Denial of Service
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 | aria2 | No fix yet | — |
| Debian 13 | aria2 | No fix yet | — |
| Debian 12 | aria2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | aria2 | No fix yet | — |
| Ubuntu 26.04 LTS | aria2 | No fix yet | — |
| Ubuntu 24.04 LTS | aria2 | No fix yet | — |
| Ubuntu 22.04 LTS | aria2 | No fix yet | — |
| Ubuntu 20.04 LTS | aria2 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | aria2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | aria2 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | aria2 | No fix yet | — |