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CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0

02 Jan 2024 — A vulnerability was found in Perl. This security issue occurs while Perl for Windows relies on the system path environment variable to find the shell (`cmd.exe`). When running an executable that uses the Windows Perl interpreter, Perl attempts to find and execute `cmd.exe` within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory. This flaw allows an attacker with limited privileges to place`cmd.exe` in locations with weak permis... • https://access.redhat.com/security/cve/CVE-2023-47039 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 8.1EPSS: 0%CPEs: 2EXPL: 1

28 Apr 2023 — CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS. A flaw was found in Perl's CPAN, which doesn't check TLS certificates when downloading content. This happens due to `verify_SSL` missing when suing the `HTTP::Tiny` library during the connection. This may allow an attacker to inject into the network path and perform a Man-In-The-Middle attack, causing confidentiality or integrity issues. USN-6112-1 fixed vulnerabilities in Perl. • http://www.openwall.com/lists/oss-security/2023/04/29/1 • CWE-295: Improper Certificate Validation •

CVSS: 8.1EPSS: 0%CPEs: 2EXPL: 0

28 Apr 2023 — HTTP::Tiny before 0.083, a Perl core module since 5.13.9 and available standalone on CPAN, has an insecure default TLS configuration where users must opt in to verify certificates. A vulnerability was found in Tiny, where a Perl core module and standalone CPAN package, does not verify TLS certificates by default. Users need to explicitly enable certificate verification with the verify_SSL=>1 flag to ensure secure HTTPS connections. This oversight can potentially expose applications to man-in-the-middle (MIT... • http://www.openwall.com/lists/oss-security/2023/04/29/1 • CWE-295: Improper Certificate Validation CWE-1188: Initialization of a Resource with an Insecure Default •

CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0

10 Aug 2021 — Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value. Encode.pm, distribuido en Perl versiones hasta 5.34.0, permite a usuarios loc... • https://github.com/Perl/perl5/commit/c1a937fef07c061600a0078f4cb53fe9c2136bb9 • CWE-427: Uncontrolled Search Path Element •

CVSS: 7.5EPSS: 0%CPEs: 21EXPL: 0

05 Jun 2020 — regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls. En el archivo regcomp.c en Perl versiones anteriores a 5.30.3, permite un desbordamiento del búfer por medio de una expresión regular diseñada debido a llamadas recursivas de la función S_study_chunk ManhND discovered that Perl incorrectly handled certain regular expressions. In environments where untrusted regular expressions are evaluated, a remote attacker could possibly use... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00044.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-185: Incorrect Regular Expression •

CVSS: 8.6EPSS: 0%CPEs: 25EXPL: 0

05 Jun 2020 — Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection. Perl versiones anteriores a 5.30.3, presenta un desbordamiento de enteros relacionado con un manejo inapropiado de una situación "PL_regkind[OP(n)] == NOTHING". Una expresión regular diseñada podría conllevar a un bytecode malformado con la posibilidad de inyección de instrucciones ManhND di... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00044.html • CWE-185: Incorrect Regular Expression CWE-190: Integer Overflow or Wraparound •

CVSS: 8.2EPSS: 0%CPEs: 23EXPL: 0

05 Jun 2020 — Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow. Perl versiones anteriores a 5.30.3 en plataformas de 32 bits permite un desbordamiento del búfer en la región heap de la memoria porque los cuantificadores de expresiones regulares anidadas presentan un desbordamiento de enteros ManhND discovered that Perl incorrectly handled certain regular expressions. In environments where untrusted regular expressions are eva... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00044.html • CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •

CVSS: 9.8EPSS: 1%CPEs: 16EXPL: 1

30 Nov 2018 — Perl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations. Perl, en versiones anteriores a la 5.26.3 y versiones 5.28.0 anteriores a la 5.28.1, tiene un desbordamiento de búfer mediante una expresión regular manipulada que desencadena operaciones inválidas de escritura. Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv. An attacker could use this issue to cause Perl to crash, resulting in a denial of serv... • http://www.securityfocus.com/bid/106179 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 9.8EPSS: 0%CPEs: 30EXPL: 0

30 Nov 2018 — Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations. Perl, en versiones anteriores a la 5.26.3 y versiones 5.28.0.x anteriores a la 5.28.1, tiene un desbordamiento de búfer mediante una expresión regular manipulada que desencadena operaciones inválidas de escritura. Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv. An attacker could use this issue to cause Perl to crash, resulting in a denial of se... • http://seclists.org/fulldisclosure/2019/Mar/49 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •

CVSS: 9.1EPSS: 0%CPEs: 17EXPL: 1

30 Nov 2018 — Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory. Perl, en versiones anteriores a la 5.26.3, tiene una sobrelectura de búfer mediante una expresión regular manipulada que desencadena la divulgación de información sensible de la memoria del proceso. Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv. An attacker could use this issue to cause Perl to crash, resulting in a denial of service, o... • http://seclists.org/fulldisclosure/2019/Mar/49 • CWE-125: Out-of-bounds Read •