The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."

The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."

perl: possible arbitrary code execution via Locale::Maketext perl: regexp matching hangs indefinitely on illegal UTF-8 input perl: ambiguous environment variables handling perl: Heap buffer overflow in regular expression compiler perl: Buffer over-read in regular expression parser perl: heap buffer overflow in pp_pack.c perl: heap-based buffer overflow in regular expression compiler leads to DoS perl: stack-based crash in S_find_uninit_var()

Security update for perl

Affected: Ubuntu:14.04:LTS: perl

The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."