| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | = 1.0 | |
| mozilla | = 1.7.3 | |
| thunderbird | = 0.1= 0.2= 0.3= 0.4= 0.5= 0.6= 0.7= 0.8= 0.9= 1.0 |
String handling functions in Mozilla 1.7.3, Firefox 1.0, and Thunderbird before 1.0.2, such as the nsTSubstring_CharT::Replace function, do not properly check the return values of other functions that resize the string, which allows remote attackers to cause a denial of service and possibly execute arbitrary code by forcing an out-of-memory state that causes a reallocation to fail and return a pointer to a fixed address, which leads to heap corruption.
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