CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-3482 – exiv2: Heap-based buffer overflow in Jp2Image::readMetadata()
https://notcve.org/view.php?id=CVE-2021-3482
A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow via a crafted JPG image containing malicious EXIF data. Se encontró un fallo en Exiv2 en versiones anteriores e incluyendo 0.27.4-RC1. Una comprobación inapropiada de la entrada de la propiedad rawData.size en la función Jp2Image::readMetadata() en el archivo jp2image.cpp puede conllevar a un desbordamiento del búfer en la región stack de la memoria por medio de una imagen JPG diseñada que contiene datos EXIF ??maliciosos A flaw was found in Exiv2. • https://bugzilla.redhat.com/show_bug.cgi?id=1946314 https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN https://www.debian.org/security/2021/dsa-4958 https://access.redhat.com/security/cve/CVE-2021-3482 • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 26EXPL: 0CVE-2021-29154 – kernel: Local privilege escalation due to incorrect BPF JIT branch displacement computation
https://notcve.org/view.php?id=CVE-2021-29154
BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c. Los compiladores BPF JIT en el kernel de Linux hasta la versión 5.11.12 tienen un cálculo incorrecto de los desplazamientos de rama, lo que les permite ejecutar código arbitrario dentro del contexto del kernel. Esto afecta a arch/x86/net/bpf_jit_comp.c y arch/x86/net/bpf_jit_comp32.c A flaw was found in the Linux kernels eBPF implementation. By default, accessing the eBPF verifier is only accessible to privileged users with CAP_SYS_ADMIN. • http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=26f55a59dc65ff77cd1c4b37991e26497fc68049 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4d4d456436bfb2fe412ee2cd489f7658449b098 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://lists.fedoraproject.org/archives/list/package-anno • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 2CVE-2021-30184
https://notcve.org/view.php?id=CVE-2021-30184
GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc. GNU Chess versión 6.2.7, permite a atacantes ejecutar código arbitrario por medio de datos PGN (Portable Game Notation) diseñados. Esto está relacionado con un desbordamiento de búfer en el uso de un archivo temporal .tmp.epd en las funciones cmd_pgnload y cmd_pgnreplay en el archivo frontend/cmd.cc • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QC74RWMDLSQGV6Z3ZABNTPABB33S4YNF https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SOGPLC77ZL2FACSOE5MWDS3YH3RBNQAQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXOTMUSBVUZNA3JMPG6BU37DQW2YOJWS https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00000.html https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00001.html https://security • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-30178
https://notcve.org/view.php?id=CVE-2021-30178
An issue was discovered in the Linux kernel through 5.11.11. synic_get in arch/x86/kvm/hyperv.c has a NULL pointer dereference for certain accesses to the SynIC Hyper-V context, aka CID-919f4ebc5987. Se detectó un problema en el kernel de Linux versiones hasta 5.11.11. La función synic_get en el archivo arch/x86/kvm/hyperv.c presenta una desreferencia de puntero NULL para determinados accesos en el contexto SynIC Hyper-V, también se conoce como CID-919f4ebc5987 • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=919f4ebc598701670e80e31573a58f1f2d2bf918 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IJ5GEETMX3ERQ4DF3GSS2XPNSOOK44OB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGQDVYCDM3F5VXUZIADIV2ERL3AJXNJS https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M • CWE-476: NULL Pointer Dereference •
CVSS: 6.1EPSS: 0%CPEs: 5EXPL: 1CVE-2021-30154
https://notcve.org/view.php?id=CVE-2021-30154
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS. Se detectó un problema en MediaWiki versiones anteriores a 1.31.12 y versiones 1.32.x hasta 1.35.x anteriores a 1.35.2. En Special: NewFiles, todos los mensajes mediastatistics-header-* son generados en HTML sin escape, conllevando a una vulnerabilidad de tipo XSS • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT https://phabricator.wikimedia.org/T278014 https://security.gentoo.org/glsa/202107-40 https://www.debian.org/security/2021/dsa-4889 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •