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Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long MODE line that causes an incorrect length calculation, which leads to a buffer overflow.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade ngircd | Dec 10, 2025 | Feb 13, 2005 |
| Gentoo Linux | — | Upgrade net-irc/ngircd. | Oct 30, 2017 | May 2, 2005 |
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