Description
Multiple format string vulnerabilities in the (1) logquit, (2) logerr, or (3) loginfo functions in Software Upgrade Protocol (SUP) allows remote attackers to execute arbitrary code via format string specifiers in messages that are logged by syslog.
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 | sup | 1.8-11 | — |
| Debian 13 | sup | 1.8-11 | — |
| Debian 12 | sup | 1.8-11 | — |
| Debian 3.0 | sup | 1.8-8woody2 | DSA-521 |
Advisories 1
- DSA-521 sup - format string vulnerability Debian Security (DSA / DLA) · Mar 9, 2026
References
- 1010539 vdb-entry
- DSA-521 vendor-advisory
- sup-format-string(16459) vdb-entry
- 10571 vdb-entry