CVE-2024-56406
Description
A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`. $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;' Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.
How to fix
- perl perl5.38.4, 5.40.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| perl perl | 5.33.1 ≤ v < 5.38.4, 5.39.0 ≤ v < 5.40.2, 5.41.0 ≤ v ≤ 5.41.10 | 5.38.4, 5.40.2 |
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