Description
Format string vulnerability in simpleproxy before 3.4 allows remote malicious HTTP proxies to execute arbitrary code via format string specifiers in a reply.
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 | simpleproxy | 3.2-4 | — |
| Debian 12 | simpleproxy | 3.2-4 | — |
| Debian 3.1 | simpleproxy | 3.2-3sarge1 | DSA-786-1 |
Advisories 1
- DSA-786-1 simpleproxy - format string vulnerability Debian Security (DSA / DLA) · Mar 9, 2026
References
- VU#139421 third-party-advisory
- 16567 third-party-advisory
- simpleproxy-reply-format-string(22016) vdb-entry
- DSA-786 vendor-advisory
- 14666 vdb-entry
- http://sourceforge.net/project/shownotes.php?group_id=604&release_id=351847