CVSS: 5.3EPSS: 0%CPEs: 21EXPL: 0CVE-2020-1934 – httpd: mod_proxy_ftp use of uninitialized value
https://notcve.org/view.php?id=CVE-2020-1934
In Apache HTTP Server 2.4.0 to 2.4.41, mod_proxy_ftp may use uninitialized memory when proxying to a malicious FTP server. En Apache HTTP Server versiones 2.4.0 hasta 2.4.41, mod_proxy_ftp puede usar memoria no inicializada cuando al enviar un proxy hacia un servidor FTP malicioso. A flaw was found in Apache's HTTP server (httpd) .The mod_proxy_ftp module may use uninitialized memory with proxying to a malicious FTP server. The highest threat from this vulnerability is to data confidentiality. • http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00002.html https://httpd.apache.org/security/vulnerabilities_24.html https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775%40%3Ccvs.httpd.apache.org%3E https://lists.apache.org/thread.html/r1719675306dfbeaceff3dc63ccad3de2d5615919ca3c13276948b9ac%40%3Cdev.httpd.apache.org%3E https://lists.apache.org/thread.html/r26706d75f6b9080ca6a29955aeb8 • CWE-456: Missing Initialization of a Variable CWE-908: Use of Uninitialized Resource •
CVSS: 8.8EPSS: 0%CPEs: 52EXPL: 6CVE-2020-8835 – Linux kernel bpf verifier vulnerability
https://notcve.org/view.php?id=CVE-2020-8835
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780) En el kernel de Linux versiones 5.5.0 y más recientes, el verificador bpf (kernel/bpf/verifier.c) no restringió apropiadamente los límites de registro para operaciones de 32 bits, conllevando a lecturas y escrituras fuera de límites en la memoria del kernel. La vulnerabilidad también afecta a la serie estable de Linux versión 5.4, comenzando con la versión v5.4.7, ya que el commit de introducción fue respaldado en esa derivación. • https://github.com/zilong3033/CVE-2020-8835 https://github.com/digamma-ai/CVE-2020-8835-verification https://github.com/SplendidSky/CVE-2020-8835 https://github.com/Prabhashaka/Exploitation-CVE-2020-8835 https://github.com/johnatag/INF8602-CVE-2020-8835 http://www.openwall.com/lists/oss-security/2021/07/20/1 https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef https://git.kernel.org/pub/scm/linux/kernel/git/torvald • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 0%CPEs: 10EXPL: 1CVE-2020-7065 – mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full
https://notcve.org/view.php?id=CVE-2020-7065
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution. En PHP versiones 7.3.x por debajo de 7.3.16 y versiones 7.4.x por debajo de 7.4.4, mientras se usa la función mb_strtolower() con codificación UTF-32LE, determinadas cadenas no comprobadas pueden causar que PHP sobrescriba el búfer asignado de la pila. Esto podría conllevar a una corrupción de la memoria, bloqueos y potencialmente a una ejecución de código. A vulnerability was found in PHP while using the mb_strtolower() function with UTF-32LE encoding, where certain invalid strings cause PHP to overwrite the stack-allocated buffer. • https://bugs.php.net/bug.php?id=79371 https://security.netapp.com/advisory/ntap-20200403-0001 https://usn.ubuntu.com/4330-1 https://usn.ubuntu.com/4330-2 https://www.debian.org/security/2020/dsa-4719 https://www.oracle.com/security-alerts/cpuoct2021.html https://www.php.net/ChangeLog-7.php#7.4.4 https://www.tenable.com/security/tns-2021-14 https://access.redhat.com/security/cve/CVE-2020-7065 https://bugzilla.redhat.com/show_bug.cgi?id=1820627 • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 14EXPL: 1CVE-2020-7064 – Use-of-uninitialized-value in exif
https://notcve.org/view.php?id=CVE-2020-7064
In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash. En PHP versiones 7.2.x por debajo de 7.2.9, versiones 7.3.x por debajo de 7.3.16 y versiones 7.4.x por debajo de 7.4.4, al analizar datos EXIF ??con la función exif_read_data(), es posible que unos datos maliciosos causen que PHP lea un byte de memoria no inicializada. Esto podría potencialmente conllevar a una divulgación de información o a un bloqueo • http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.html https://bugs.php.net/bug.php?id=79282 https://lists.debian.org/debian-lts-announce/2020/04/msg00021.html https://security.netapp.com/advisory/ntap-20200403-0001 https://usn.ubuntu.com/4330-1 https://usn.ubuntu.com/4330-2 https://www.debian.org/security/2020/dsa-4717 https://www.debian.org/security/2020/dsa-4719 https://www.oracle.com/security-alerts/cpujan2021.html https://www.tenable.com/ • CWE-125: Out-of-bounds Read CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.4EPSS: 0%CPEs: 9EXPL: 1CVE-2020-10942 – kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field
https://notcve.org/view.php?id=CVE-2020-10942
In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls. En el kernel de Linux versiones anteriores a 5.5.8, la función get_raw_socket en el archivo drivers/vhost/net.c carece de una comprobación de un campo sk_family, que podría permitir a atacantes desencadenar una corrupción de pila del kernel por medio de llamadas de sistema diseñadas. A stack buffer overflow issue was found in the get_raw_socket() routine of the Host kernel accelerator for virtio net (vhost-net) driver. It could occur while doing an ictol(VHOST_NET_SET_BACKEND) call, and retrieving socket name in a kernel stack variable via get_raw_socket(). A user able to perform ioctl(2) calls on the '/dev/vhost-net' device may use this flaw to crash the kernel resulting in DoS issue. • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html http://www.openwall.com/lists/oss-security/2020/04/15/4 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8 https://git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64 https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://lkml.org/lkm • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •