CVE-2026-8376

01/תיאור (מקור, אנגלית)

Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds. Perl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer. A caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time.

02/מוצרים מושפעים

perl: perl

03/קישורים3

• github.com/Perl/perl5/commit/5e7f119eb2bb1181be908701f22bf7068‮… Patch
• www.openwall.com/lists/oss-security/2026/05/26/1 Mailing ListThird Party Advisory
• cert-portal.siemens.com/productcert/html/ssa-457936.html