CVSS: 9.1EPSS: 1%CPEs: 8EXPL: 0CVE-2018-16842 – curl: Heap-based buffer over-read in the curl tool warning formatting
https://notcve.org/view.php?id=CVE-2018-16842
Curl versions 7.14.1 through 7.61.1 are vulnerable to a heap-based buffer over-read in the tool_msgs.c:voutf() function that may result in information exposure and denial of service. Curl, desde la versión 7.14.1 hasta la 7.61.1, es vulnerable a una sobrelectura de búfer basada en memoria dinámica (heap) en la función tool_msgs.c:voutf() que podría resultar en una exposición de información y una denegación de servicio (DoS). • http://www.securitytracker.com/id/1042014 https://access.redhat.com/errata/RHSA-2019:2181 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16842 https://curl.haxx.se/docs/CVE-2018-16842.html https://github.com/curl/curl/commit/d530e92f59ae9bb2d47066c3c460b25d2ffeb211 https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html https://security.gentoo.org/glsa/201903-03 https://usn.ubuntu.com/3805-1 https://usn.ubuntu.com/3805-2 https://www.debian.org/security/2 • CWE-125: Out-of-bounds Read •
CVSS: 5.9EPSS: 0%CPEs: 44EXPL: 0CVE-2018-0734 – Timing attack against DSA
https://notcve.org/view.php?id=CVE-2018-0734
The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p). • http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html http://www.securityfocus.com/bid/105758 https://access.redhat.com/errata/RHSA-2019:2304 https://access.redhat.com/errata/RHSA-2019:3700 https://access.redhat.com/errata/RHSA-2019:3932 https://access.redhat.com/errata/RHSA-2019:3933 https://access.redhat.com/errata/RHSA-2019:3935 https://git.openssl.org/gitweb/?p=openssl.git%3Ba • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •
CVSS: 7.8EPSS: 0%CPEs: 10EXPL: 1CVE-2018-18281 – kernel: TLB flush happens too late on mremap
https://notcve.org/view.php?id=CVE-2018-18281
Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19. Desde la versión 3.2 del kernel de Linux, la syscall mremap() realiza vaciados TLB tras soltar bloqueos de tabla de página. Si una syscall como ftruncate() elimina las entradas de las tablas de página de una tarea en medio de mremap(), una entrada TLB obsoleta puede permanecer por poco tiempo, lo que permite el acceso a una página física una vez se ha devuelto al asignador de páginas y se reutiliza. • http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html http://www.openwall.com/lists/oss-security/2018/10/29/5 http://www.securityfocus.com/bid/105761 http://www.securityfocus.com/bid/106503 https://access.redhat.com/errata/RHSA-2019:0831 https://access.redhat.com/errata/RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2020:0036 https://access.redhat.com/errata/RHSA-2020:0100 https://access&# • CWE-459: Incomplete Cleanup CWE-672: Operation on a Resource after Expiration or Release •
CVSS: 5.9EPSS: 0%CPEs: 47EXPL: 0CVE-2018-0735 – Timing attack against ECDSA signature generation
https://notcve.org/view.php?id=CVE-2018-0735
The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Se ha demostrado que el algoritmo de firmas ECDSA en OpenSSL es vulnerable a un ataque de sincronización de canal lateral. • http://www.securityfocus.com/bid/105750 http://www.securitytracker.com/id/1041986 https://access.redhat.com/errata/RHSA-2019:3700 https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1 https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4 https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html https://nodejs.org/en/blog/vulnerability/november-2018-security-releases https://security.netapp.com/advisor • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-385: Covert Timing Channel •
CVSS: 9.8EPSS: 2%CPEs: 7EXPL: 2CVE-2018-18751 – gettext: double free in default_add_message in read-catalog.c
https://notcve.org/view.php?id=CVE-2018-18751
An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt. Se ha descubierto un problema en GNU gettext 0.19.8. Hay una doble liberación (double free) en default_add_message en read-catalog.c, relacionado con una liberación no válida en po_gram_parse en po-gram-gen.y, tal y como queda demostrado con lt-msgfmt. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00061.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00065.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00025.html https://access.redhat.com/errata/RHSA-2019:3643 https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/doublefree https://github.com/CCCCCrash/POCs/tree/master/Bin/Tools-gettext-0.19.8.1/heapcorruption https://usn.ubuntu.com/3815-1 https:// • CWE-415: Double Free CWE-416: Use After Free •