CVE-2020-12767 – libexif: divide-by-zero in exif_entry_get_value function in exif-entry.c
https://notcve.org/view.php?id=CVE-2020-12767
exif_entry_get_value in exif-entry.c in libexif 0.6.21 has a divide-by-zero error. La función exif_entry_get_value en el archivo exif-entry.c en libexif versión 0.6.21, presenta un error de división por cero. • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html https://github.com/libexif/libexif/issues/31 https://lists.debian.org/debian-lts-announce/2020/05/msg00016.html https://security.gentoo.org/glsa/202007-05 https://usn.ubuntu.com/4358-1 https://access.redhat.com/security/cve/CVE-2020-12767 https://bugzilla.redhat.com/show_bug.cgi?id=1834950 • CWE-369: Divide By Zero •
CVE-2020-12769
https://notcve.org/view.php?id=CVE-2020-12769
An issue was discovered in the Linux kernel before 5.4.17. drivers/spi/spi-dw.c allows attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one, aka CID-19b61392c5a8. Se detectó un problema en el kernel de Linux versiones anteriores a 5.4.17. El archivo drivers/spi/spi-dw.c, permite a atacantes causar un pánico por medio de llamadas concurrentes a las funciones dw_spi_irq y dw_spi_transfer_one, también se conoce como CID-19b61392c5a8. • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.17 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=19b61392c5a852b4e8a0bf35aecb969983c5932d https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://lkml.org/lkml/2020& • CWE-662: Improper Synchronization •
CVE-2020-12770 – kernel: sg_write function lacks an sg_remove_request call in a certain failure case
https://notcve.org/view.php?id=CVE-2020-12770
An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040. Se detectó un problema en el kernel de Linux versiones hasta 5.6.11. La función sg_write, carece de una llamada a sg_remove_request en un determinado caso de fallo, también se conoce como CID-83c6f2390040. A vulnerability was found in sg_write in drivers/scsi/sg.c in the SCSI generic (sg) driver subsystem. This flaw allows an attacker with local access and special user or root privileges to cause a denial of service if the allocated list is not cleaned with an invalid (Sg_fd * sfp) pointer at the time of failure, also possibly causing a kernel internal information leak problem. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83c6f2390040f188cc25b270b4befeb5628c1aee 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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ES5C6ZCMALBEBMKNNCTBSLLSYGFZG3FF https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora • CWE-416: Use After Free •
CVE-2020-12771
https://notcve.org/view.php?id=CVE-2020-12771
An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails. Se detectó un problema en el kernel de Linux versiones hasta 5.6.11. La función btree_gc_coalesce en el archivo drivers/md/bcache/btree.c, presenta un punto muerto si se produce un fallo de la operación de coalescencia. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html https://lkml.org/lkml/2020/4/26/87 https://security.netapp.com/advisory/ntap-20200608-0001 https://usn.ubuntu.com/4462-1 https: • CWE-667: Improper Locking •
CVE-2020-12762 – libfastjson: integer overflow and out-of-bounds write via a large JSON file
https://notcve.org/view.php?id=CVE-2020-12762
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend. json-c versiones hasta 0.14, presenta un desbordamiento de enteros y una escritura fuera de límites por medio de un archivo JSON grande, como es demostrado por la función printbuf_memappend. A flaw was found in json-c. In printbuf_memappend, certain crafted values can overflow the memory allowing an attacker to write past the memory boundary. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. • https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf https://github.com/json-c/json-c/pull/592 https://github.com/rsyslog/libfastjson/issues/161 https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html https://lists.fedoraproject.org/archives/list/package-annou • CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •