Description
The CInArchive::ReadFileItem method in Archive/Udf/UdfIn.cpp in 7zip 9.20 and 15.05 beta and p7zip allows remote attackers to cause a denial of service (out-of-bounds read) or execute arbitrary code via the PartitionRef field in the Long Allocation Descriptor in a UDF 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 13 | p7zip | 15.14.1+dfsg-2 | — |
| Debian 12 | p7zip | 15.14.1+dfsg-2 | — |
| Debian 8 | p7zip | 9.20.1~dfsg.1-4.1+deb8u2 | DSA-3599-1 |
| Debian 7 | p7zip | 9.20.1~dfsg.1-4+deb7u2 | DLA-510-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | p7zip | 9.20.1~dfsg.1-4.2ubuntu0.1 | USN-3913-1 |
| Ubuntu 14.04 LTS | p7zip | 9.20.1~dfsg.1-4+deb7u2build0.14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | p7zip | 9.20.1-6.1 | SUSE-SU-2016:1593-1 |
| SLES 12 | p7zip | 9.20.1-6.1 | SUSE-SU-2016:1593-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | p7zip | 9.20.1-6.1 | SUSE-SU-2016:1593-1 |
| SLES for SAP 12 | p7zip | 9.20.1-6.1 | SUSE-SU-2016:1593-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | p7zip | 16.02-2.1 | openSUSE-SU-2024:10322-1 |
Advisories 5
- DLA-510-1 p7zip - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3599-1 p7zip - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3913-1 p7zip vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:1593-1 Security update for p7zip SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10322-1 p7zip-16.02-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- openSUSE-SU-2016:1850 vendor-advisory
- FEDORA-2016-bbcb0e4eb4 vendor-advisory
- openSUSE-SU-2016:1464 vendor-advisory
- http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html
- 90531 vdb-entry
- GLSA-201701-27 vendor-advisory
- 1035876 vdb-entry
- openSUSE-SU-2016:1675 vendor-advisory
- http://www.talosintel.com/reports/TALOS-2016-0094/
- DSA-3599 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
- FEDORA-2016-430bc0f808 vendor-advisory
- USN-3913-1 vendor-advisory