CVSS: 9.8EPSS: 1%CPEs: 5EXPL: 2CVE-2022-3515 – GnuPG libksba CRL File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2022-3515
A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GnuPG libksba. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of CRL files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. • https://access.redhat.com/security/cve/CVE-2022-3515 https://bugzilla.redhat.com/show_bug.cgi?id=2135610 https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582b https://security.netapp.com/advisory/ntap-20230706-0008 https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.html • CWE-190: Integer Overflow or Wraparound •
CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 2CVE-2022-34903 – gpg: Signature spoofing via status line injection
https://notcve.org/view.php?id=CVE-2022-34903
GnuPG through 2.3.6, in unusual situations where an attacker possesses any secret-key information from a victim's keyring and other constraints (e.g., use of GPGME) are met, allows signature forgery via injection into the status line. GnuPG versiones hasta 2.3.6, en situaciones inusuales en las que un atacante posee cualquier información de clave secreta del llavero de la víctima y son cumplidos en otras restricciones (por ejemplo, el uso de GPGME), permite una falsificación de firmas por medio de la inyección en la línea de estado A vulnerability was found in GnuPG. This issue occurs due to an escape detection loop at the write_status_text_and_buffer() function in g10/cpr.c. This flaw allows a malicious actor to bypass access control. • http://www.openwall.com/lists/oss-security/2022/07/02/1 https://bugs.debian.org/1014157 https://dev.gnupg.org/T6027 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRLWJQ76A4UKHI3Q36BKSJKS4LFLQO33 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NPTAR76EIZY7NQFENSOZO7U473257OVZ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VN63GBTMRWO36Y7BKA2WQHROAKCXKCBL https://lists.fedoraproject.org/archives • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 1CVE-2020-25125
https://notcve.org/view.php?id=CVE-2020-25125
GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker's OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version. GnuPG versiones 2.2.21 y 2.2.22 (y Gpg4win versión 3.1.12), presenta un desbordamiento de la matriz, conllevando a un bloqueo o posiblemente otro impacto no especificado, cuando una víctima importa la clave OpenPGP de un atacante, y esta clave contiene preferencias AEAD. • http://www.openwall.com/lists/oss-security/2020/09/03/4 http://www.openwall.com/lists/oss-security/2020/09/03/5 https://bugzilla.opensuse.org/show_bug.cgi?id=1176034 https://dev.gnupg.org/T5050 https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •