Description
Incorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.
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-rar | 16.02-3 | — |
| Debian 12 | p7zip-rar | 16.02-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | p7zip-rar | No fix yet | — |
| Ubuntu 16.04 LTS | p7zip-rar | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.17 | p7zip | 16.02-r3 | — |
| Alpine v3.16 | p7zip | 16.02-r3 | — |
| Alpine v3.15 | p7zip | 16.02-r3 | — |
| Alpine v3.14 | p7zip | 16.02-r3 | — |
| Alpine v3.13 | p7zip | 16.02-r3 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.12 | p7zip | 16.02-r3 | — |
| Alpine v3.11 | p7zip | 16.02-r3 | — |
| Alpine v3.10 | p7zip | 16.02-r3 | — |
| Alpine v3.9 | p7zip | 16.02-r3 | — |
| Alpine v3.8 | p7zip | 16.02-r3 | — |
| Alpine v3.7 | p7zip | 16.02-r3 | — |
| Alpine v3.6 | p7zip | 16.02-r3 | — |
| Alpine v3.5 | p7zip | 16.02-r3 | — |
Advisories 1
- ICSMA-21-187-01 Philips Vue PACS (Update B) CISA ICS & IT advisories · Apr 5, 2022