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: 7.5EPSS: 0%CPEs: 4EXPL: 1CVE-2019-14855
https://notcve.org/view.php?id=CVE-2019-14855
A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18. Se detectó un fallo en la manera en que podrían ser falsificadas las firmas de certificados usando colisiones encontradas en el algoritmo SHA-1. Un atacante podría usar esta debilidad para crear firmas de certificados falsificadas. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855 https://dev.gnupg.org/T4755 https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html https://rwc.iacr.org/2020/slides/Leurent.pdf https://usn.ubuntu.com/4516-1 • CWE-326: Inadequate Encryption Strength •
CVSS: 7.5EPSS: 1%CPEs: 7EXPL: 1CVE-2019-13050 – GnuPG: interaction between the sks-keyserver code and GnuPG allows for a Certificate Spamming Attack which leads to persistent DoS
https://notcve.org/view.php?id=CVE-2019-13050
Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack. La interacción entre el código sks-keyserver hasta versión 1.2.0 de la red SKS keyserver, y GnuPG hasta la versión 2.2.16, hace arriesgado tener una línea de configuración keyserver de GnuPG que se refiera a un host en la red SKS keyserver. La recuperación de datos de esta red puede causar una denegación de servicio persistente, debido a un Ataque de Spamming de Certificado. • http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00039.html https://gist.github.com/rjhansen/67ab921ffb4084c865b3618d6955275f https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E https://lists.fedoraproject.org/archives/list/pack • CWE-295: Improper Certificate Validation CWE-297: Improper Validation of Certificate with Host Mismatch •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 1CVE-2018-1000858 – gnupg2: Cross site request forgery in dirmngr resulting in an information disclosure or denial of service
https://notcve.org/view.php?id=CVE-2018-1000858
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060. GnuPG, de la versión 2.1.12 a la 2.2.11, contiene una vulnerabilidad Cross-Site Request Forgery (CSRF) en dirmngr que puede resultar en CSRF controlado por el atacante, una divulgación de información o una denegación de servicio (DoS). El ataque parece ser explotable mediante una víctima que realice una petición WKD, por ejemplo, la introducción de una dirección de correo electrónico en la ventana "composer" de Thunderbird/Enigmail. • https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html https://usn.ubuntu.com/3853-1 https://access.redhat.com/security/cve/CVE-2018-1000858 https://bugzilla.redhat.com/show_bug.cgi?id=1663917 • CWE-352: Cross-Site Request Forgery (CSRF) •