CVE-2023-49606

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 63.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-05-01 · updated 2026-06-17
Weakness: CWE-416

Description

A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.

Affected products

tinyproxy: 1.10.0, 1.11.1

References

http://www.openwall.com/lists/oss-security/2024/05/07/1
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1889
http://www.openwall.com/lists/oss-security/2024/05/07/1
https://lists.debian.org/debian-lts-announce/2024/09/msg00035.html
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1889
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1889

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