CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-38498 – Mozilla: Use-after-free of nsLanguageAtomService object
https://notcve.org/view.php?id=CVE-2021-38498
During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2. Durante el cierre del proceso, un documento podría haber causado un uso de memoria previamente liberada de un objeto de servicio de idiomas, conllevando a una corrupción de memoria y un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox versiones anteriores a 93, Thunderbird versiones anteriores a 91.2 y Firefox ESR versiones anteriores a 91.2 • https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 https://www.mozilla.org/security/advisories/mfsa2021-43 https://www.mozilla.org/security/advisories/mfsa2021-45 https://www.mozilla.org/security/advisories/mfsa2021-47 https://access.redhat.com/security/cve/CVE-2021-38498 https://bugzilla.redhat.com/show_bug.cgi?id=2011099 • CWE-416: Use After Free •
CVSS: 8.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-38500 – Mozilla: Memory safety bugs fixed in Firefox 93, Firefox ESR 78.15, and Firefox ESR 91.2
https://notcve.org/view.php?id=CVE-2021-38500
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. Los desarrolladores de Mozilla informaron de bugs de seguridad de memoria presentes en Firefox 92 y Firefox ESR 91.1. Algunos de estos bugs mostraban evidencias de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1725854%2C1728321 https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html https://www.debian.org/security/2022/dsa-5034 https://www.mozilla.org/security/advisories/mfsa2021-43 https://www.mozilla.org/security/advisories/mfsa2021-44 https://www.mozilla.org/security/advisories/mfsa2021-45 https://www.mozilla.org/security/advisories/mfsa2021-46 https://www.mozilla.org/security/advisories/mfsa2021-47 https://access.redhat.com/security& • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-38501 – Mozilla: Memory safety bugs fixed in Firefox 93 and Firefox ESR 91.2
https://notcve.org/view.php?id=CVE-2021-38501
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2. Los desarrolladores de Mozilla informaron de bugs de seguridad de memoria presentes en Firefox 92 y Firefox ESR 91.1. Algunos de estos bugs mostraban evidencias de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1685354%2C1715755%2C1723176 https://www.mozilla.org/security/advisories/mfsa2021-43 https://www.mozilla.org/security/advisories/mfsa2021-45 https://www.mozilla.org/security/advisories/mfsa2021-47 https://access.redhat.com/security/cve/CVE-2021-38501 https://bugzilla.redhat.com/show_bug.cgi?id=2011101 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 8.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-38493 – Mozilla: Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1
https://notcve.org/view.php?id=CVE-2021-38493
Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92. Los desarrolladores de Mozilla informaron de bugs de seguridad de memoria presentes en Firefox versión 91 y Firefox ESR versión 78.13. Algunos de estos bugs mostraban evidencias de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1723391%2C1724101%2C1724107 https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://www.mozilla.org/security/advisories/mfsa2021-38 https://www.mozilla.org/security/advisories/mfsa2021-39 https://www.mozilla.org/security/advisories/mfsa2021-42 https://access.redhat.com/security/cve/CVE-2021-38493 https://bugzilla.redhat.com/show_bug.cgi?id=2002119 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 5.9EPSS: 0%CPEs: 4EXPL: 1CVE-2021-40529
https://notcve.org/view.php?id=CVE-2021-40529
The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP. Una implementación de ElGamal en Botan versiones hasta 2.18.1, tal y como se usa en Thunderbird y otros productos, permite una recuperación de texto plano porque, durante la interacción entre dos bibliotecas criptográficas, una determinada combinación peligrosa del primo definido por la clave pública del receptor, el generador definido por la clave pública del receptor y los exponentes efímeros del emisor puede conllevar a un ataque de configuración cruzada contra OpenPGP. • https://eprint.iacr.org/2021/923 https://github.com/randombit/botan/pull/2790 https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1 https://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/72NB4OLD3VHJC3YF3PEP2HKF6BYURPAO https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPHGYWNJQKWLTUWBNSFB4F66MQDIL3IB https://security • CWE-327: Use of a Broken or Risky Cryptographic Algorithm •