Description
A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact.
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 | screen | 4.8.0-1 | — |
| Debian 13 | screen | 4.8.0-1 | — |
| Debian 12 | screen | 4.8.0-1 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | screen | 4.8.0-r0 | — |
| Alpine v3.23 | screen | 4.8.0-r0 | — |
| Alpine v3.22 | screen | 4.8.0-r0 | — |
| Alpine v3.21 | screen | 4.8.0-r0 | — |
| Alpine v3.20 | screen | 4.8.0-r0 | — |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | screen | 4.8.0-r0 | — |
| Alpine v3.18 | screen | 4.8.0-r0 | — |
| Alpine v3.17 | screen | 4.8.0-r0 | — |
| Alpine v3.16 | screen | 4.8.0-r0 | — |
| Alpine v3.15 | screen | 4.8.0-r0 | — |
| Alpine v3.14 | screen | 4.8.0-r0 | — |
| Alpine v3.13 | screen | 4.8.0-r0 | — |
| Alpine v3.12 | screen | 4.8.0-r0 | — |
| Alpine v3.11 | screen | 4.7.0-r1 | — |
| Alpine v3.10 | screen | 4.6.2-r1 | — |
| Alpine v3.9 | screen | 4.6.2-r1 | — |
| Alpine v3.8 | screen | 4.6.2-r1 | — |