Vulnerabilities (CVE)

Filtered by vendor Fedoraproject Subscribe
Total 5331 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-27749 4 Fedoraproject, Gnu, Netapp and 1 more 8 Fedora, Grub2, Ontap Select Deploy Administration Utility and 5 more 2024-11-21 7.2 HIGH 6.7 MEDIUM
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2020-27675 3 Debian, Fedoraproject, Linux 3 Debian Linux, Fedora, Linux Kernel 2024-11-21 4.7 MEDIUM 4.7 MEDIUM
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5.
CVE-2020-27674 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2024-11-21 4.6 MEDIUM 5.3 MEDIUM
An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.
CVE-2020-27672 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2024-11-21 6.9 MEDIUM 7.0 HIGH
An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.
CVE-2020-27671 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2024-11-21 6.9 MEDIUM 7.8 HIGH
An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled.
CVE-2020-27670 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2024-11-21 6.9 MEDIUM 7.8 HIGH
An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because an AMD IOMMU page-table entry can be half-updated.
CVE-2020-27638 3 Debian, Fastd Project, Fedoraproject 3 Debian Linux, Fastd, Fedora 2024-11-21 5.0 MEDIUM 7.5 HIGH
receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code.
CVE-2020-27619 3 Fedoraproject, Oracle, Python 3 Fedora, Communications Cloud Native Core Network Function Cloud Native Environment, Python 2024-11-21 7.5 HIGH 9.8 CRITICAL
In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.
CVE-2020-27418 1 Fedoraproject 1 Fedora Linux Kernel 2024-11-21 N/A 4.4 MEDIUM
A Use After Free vulnerability in Fedora Linux kernel 5.9.0-rc9 allows attackers to obatin sensitive information via vgacon_invert_region() function.
CVE-2020-27171 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2024-11-21 3.6 LOW 6.0 MEDIUM
An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-10d2bb2e6b1d.
CVE-2020-27170 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2024-11-21 1.9 LOW 4.7 MEDIUM
An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit.
CVE-2020-26935 4 Debian, Fedoraproject, Opensuse and 1 more 5 Debian Linux, Fedora, Backports Sle and 2 more 2024-11-21 7.5 HIGH 9.8 CRITICAL
An issue was discovered in SearchController in phpMyAdmin before 4.9.6 and 5.x before 5.0.3. A SQL injection vulnerability was discovered in how phpMyAdmin processes SQL statements in the search feature. An attacker could use this flaw to inject malicious SQL in to a query.
CVE-2020-26934 4 Debian, Fedoraproject, Opensuse and 1 more 5 Debian Linux, Fedora, Backports Sle and 2 more 2024-11-21 4.3 MEDIUM 6.1 MEDIUM
phpMyAdmin before 4.9.6 and 5.x before 5.0.3 allows XSS through the transformation feature via a crafted link.
CVE-2020-26892 2 Fedoraproject, Linuxfoundation 2 Fedora, Nats-server 2024-11-21 7.5 HIGH 9.8 CRITICAL
The JWT library in NATS nats-server before 2.1.9 has Incorrect Access Control because of how expired credentials are handled.
CVE-2020-26890 2 Fedoraproject, Matrix 2 Fedora, Synapse 2024-11-21 5.0 MEDIUM 7.5 HIGH
Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into the room's state, the impact is long-lasting and is not fixed by an upgrade to a newer version, requiring the event to be manually redacted instead. Since events are replicated to servers of other room members, the impact is not constrained to the server of the event sender.
CVE-2020-26880 3 Debian, Fedoraproject, Sympa 3 Debian Linux, Fedora, Sympa 2024-11-21 7.2 HIGH 7.8 HIGH
Sympa through 6.2.57b.2 allows a local privilege escalation from the sympa user account to full root access by modifying the sympa.conf configuration file (which is owned by sympa) and parsing it through the setuid sympa_newaliases-wrapper executable.
CVE-2020-26797 2 Fedoraproject, Mediaarea 2 Fedora, Mediainfo 2024-11-21 5.0 MEDIUM 7.5 HIGH
Mediainfo before version 20.08 has a heap buffer overflow vulnerability via MediaInfoLib::File_Gxf::ChooseParser_ChannelGrouping.
CVE-2020-26575 4 Debian, Fedoraproject, Oracle and 1 more 5 Debian Linux, Fedora, Zfs Storage Appliance and 2 more 2024-11-21 5.0 MEDIUM 7.5 HIGH
In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.
CVE-2020-26572 3 Debian, Fedoraproject, Opensc Project 3 Debian Linux, Fedora, Opensc 2024-11-21 2.1 LOW 5.5 MEDIUM
The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.
CVE-2020-26571 3 Debian, Fedoraproject, Opensc Project 3 Debian Linux, Fedora, Opensc 2024-11-21 2.1 LOW 5.5 MEDIUM
The gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init.