Description
Integer signedness error in attach.c in dtach 0.8 allows remote attackers to obtain sensitive information from daemon stack memory in opportunistic circumstances by reading application data after an improper connection-close request, as demonstrated by running an IRC client in dtach.
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 | dtach | 0.8-2.1 | — |
| Debian 13 | dtach | 0.8-2.1 | — |
| Debian 12 | dtach | 0.8-2.1 | — |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=812551
- http://sourceforge.net/tracker/download.php?group_id=36489&atid=417357&file_id=441195&aid=3517812
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=625302
- https://bugzilla.redhat.com/show_bug.cgi?id=835849
- http://sourceforge.net/tracker/?func=detail&aid=3517812&group_id=36489&atid=417357