Description
Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c.
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 | leptonlib | 1.79.0-1.1 | — |
| Debian 13 | leptonlib | 1.79.0-1.1 | — |
| Debian 12 | leptonlib | 1.79.0-1.1 | — |
| Debian 9 | leptonlib | 1.74.1-1+deb9u1 | DLA-2612-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | leptonlib | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | leptonlib | No fix yet | — |
| Ubuntu Pro 16.04 LTS | leptonlib | No fix yet | — |
| Ubuntu Pro 14.04 LTS | leptonlib | No fix yet | — |
Advisories 1
- DLA-2612-1 leptonlib - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21997
- https://github.com/DanBloomberg/leptonica/pull/499
- https://github.com/DanBloomberg/leptonica/compare/1.79.0...1.80.0
- [debian-lts-announce] 20210331 [SECURITY] [DLA 2612-1] leptonlib security update mailing-list
- FEDORA-2021-977ebc82da vendor-advisory
- FEDORA-2021-f5f2803fff vendor-advisory
- GLSA-202107-53 vendor-advisory