Description
There is a heap-based buffer over-read in the Exiv2::Internal::PngChunk::keyTXTChunk function of pngchunk_int.cpp in Exiv2 0.26. A crafted PNG file will lead to a remote denial of service attack.
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 | exiv2 | 0.27.2-6 | — |
| Debian 13 | exiv2 | 0.27.2-6 | — |
| Debian 12 | exiv2 | 0.27.2-6 | — |
| Debian 10 | exiv2 | 0.25-4+deb10u4 | DLA-3265-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | exiv2 | 0.25-3.1ubuntu0.18.04.2 | USN-3852-1 |
| Ubuntu 16.04 LTS | exiv2 | 0.25-2.1ubuntu16.04.3 | USN-3852-1 |
| Ubuntu 14.04 LTS | exiv2 | 0.23-1ubuntu2.2 | USN-3852-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | exiv2 | 0.23-12.5.1 | SUSE-SU-2018:3882-2 |
| SLES 12 SP3 | exiv2 | 0.23-12.5.1 | SUSE-SU-2018:3882-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | exiv2 | 0.23-12.5.1 | SUSE-SU-2018:3882-2 |
| SLES for SAP 12 SP3 | exiv2 | 0.23-12.5.1 | SUSE-SU-2018:3882-1 |
Advisories 4
- USN-3852-1 exiv2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-3265-1 exiv2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2018:3882-1 Security update for exiv2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3882-2 Security update for exiv2 SUSE / openSUSE Security Updates · May 2, 2025