The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing functions (the rfc2047 function in mbox.c). An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. This action could cause a buffer overflow condition when ClamAV scans the malicious email, allowing the attacker to potentially cause a DoS condition on an affected device.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade clamav | Aug 22, 2024 | Jan 26, 2018 |
| Amazon_linux | — | Upgrade clamav | Feb 22, 2018 | Jan 25, 2018 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jan 26, 2018 |
| Debian | — | Upgrade clamav | Feb 19, 2019 | Jan 26, 2018 |
| Freebsd | — | Upgrade clamav | Jan 27, 2018 | Jan 26, 2018 |
| Gentoo Linux | — | Upgrade app-antivirus/clamav. | Jan 29, 2018 | Jan 26, 2018 |
| Suse | — | Upgrade libfreshclam2Upgrade clamavUpgrade libclamav7Upgrade libclammspack0Upgrade libclamav9Upgrade clamav-devel | Jan 30, 2018 | Jan 25, 2018 |
| Ubuntu | — | Upgrade clamav | Jan 31, 2018 | Jan 25, 2018 |
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