What’s Vulnerable › Vulnerabilities

CVE-2010-2621

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-07-02 · updated 2026-06-16
• Weakness: CWE-20

Description

The QSslSocketBackendPrivate::transmit function in src_network_ssl_qsslsocket_openssl.cpp in Qt 4.6.3 and earlier allows remote attackers to cause a denial of service (infinite loop) via a malformed request.

Affected products

• Digia Qt: through 4.6.3
• Qt: 4.0.0, 4.0.1, 4.1.0, 4.1.1, 4.1.2, 4.1.3 (+23)

References

• http://aluigi.org/adv/qtsslame-adv.txt
• http://aluigi.org/poc/qtsslame.zip
• http://osvdb.org/65860
• http://qt.gitorious.org/qt/qt/commit/c25c7c9bdfade6b906f37ac8bad44f6f0de57597
• http://secunia.com/advisories/40389
• http://secunia.com/advisories/46410
• http://www.securityfocus.com/bid/41250
• http://www.vupen.com/english/advisories/2010/1657
• https://hermes.opensuse.org/messages/12056605
• http://aluigi.org/adv/qtsslame-adv.txt
• http://aluigi.org/poc/qtsslame.zip
• http://osvdb.org/65860

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