CVSS: 6.4EPSS: 0%CPEs: 6EXPL: 0CVE-2020-25285 – kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c
https://notcve.org/view.php?id=CVE-2020-25285
A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812. Una condición de carrera entre los manejadores hugetlb sysctl en el archivo mm/hugetlb.c en el kernel de Linux versiones anteriores a 5.8.8, podría ser usada por atacantes locales para corromper la memoria, causar una desreferencia del puntero NULL o posiblemente tener otro impacto no especificado, también se conoce como CID-17743798d812 A flaw was found in the Linux kernels sysctl handling code for hugepages management. When multiple root level processes would write to modify the /proc/sys/vm/nr_hugepages file it could create a race on internal variables leading to a system crash or memory corruption. • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.8 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17743798d81238ab13050e8e2833699b54e15467 https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html https://security.netapp.com/advisory/ntap-20201009-0002 https://twitter.com/grsecurity/status/1303749848898904067 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-476: NULL Pointer Dereference CWE-787: Out-of-bounds Write •
CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0CVE-2013-7490
https://notcve.org/view.php?id=CVE-2013-7490
An issue was discovered in the DBI module before 1.632 for Perl. Using many arguments to methods for Callbacks may lead to memory corruption. Se detectó un problema en el módulo DBI versiones anteriores a 1.632 para Perl. El uso de muchos argumentos en métodos para las devoluciones de llamada puede conllevar a una corrupción de la memoria • https://github.com/perl5-dbi/dbi/commit/a8b98e988d6ea2946f5f56691d6d5ead53f65766 https://metacpan.org/pod/distribution/DBI/Changes#Changes-in-DBI-1.632-9th-Nov-2014 https://rt.cpan.org/Public/Bug/Display.html?id=86744#txn-1880941 https://usn.ubuntu.com/4509-1 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 7.0EPSS: 0%CPEs: 8EXPL: 0CVE-2020-25212 – kernel: TOCTOU mismatch in the NFS client code
https://notcve.org/view.php?id=CVE-2020-25212
A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452. Una discrepancia de TOCTOU en el código del cliente NFS en el kernel de Linux versiones anteriores a 5.8.3, podría ser usada por atacantes locales para dañar la memoria o posiblemente tener otro impacto no especificado porque una comprobación de tamaño se encuentra en el archivo fs/nfs/nfs4proc.c en lugar de fs/nfs/nfs4xdr.c, también se conoce como CID-b4487b935452. A flaw was found in the NFSv4 implementation where when mounting a remote attacker controlled server it could return specially crafted response allow for local memory corruption and possibly privilege escalation. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4487b93545214a9db8cbf32e86411677b0cca21 https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html https://lists.debian.org&#x • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-14345 – X.Org Server XkbSetNames Out-Of-Bounds Access Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14345
A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en X.Org Server versiones anteriores a xorg-x11-server 1.20.9. Un acceso fuera de límites en la función XkbSetNames puede conllevar a una vulnerabilidad de escalada de privilegios. • http://www.openwall.com/lists/oss-security/2021/01/15/1 https://bugzilla.redhat.com/show_bug.cgi?id=1862241 https://lists.x.org/archives/xorg-announce/2020-August/003058.html https://security.gentoo.org/glsa/202012-01 https://usn.ubuntu.com/4488-2 https://usn.ubuntu.com/4490-1 https://www.zerodayinitiative.com/advisories/ZDI-20-1416 https://access.redhat.com/security/cve/CVE-2020-14345 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-14346 – X.Org Server XIChangeHierarchy Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14346
A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en xorg-x11-server versiones anteriores a 1.20.9. Un subdesbordamiento de enteros en la decodificación del protocolo de extensión de entrada X en el servidor X puede conllevar a un acceso arbitrario al contenido de la memoria. • https://bugzilla.redhat.com/show_bug.cgi?id=1862246 https://lists.x.org/archives/xorg-announce/2020-August/003058.html https://security.gentoo.org/glsa/202012-01 https://usn.ubuntu.com/4488-2 https://www.zerodayinitiative.com/advisories/ZDI-20-1417 https://access.redhat.com/security/cve/CVE-2020-14346 • CWE-191: Integer Underflow (Wrap or Wraparound) •