Vulnerabilities (CVE)

Filtered by vendor Fedoraproject Subscribe
Total 5187 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-15967 4 Debian, Fedoraproject, Google and 1 more 4 Debian Linux, Fedora, Chrome and 1 more 2024-11-21 6.8 MEDIUM 8.8 HIGH
Use after free in payments in Google Chrome prior to 86.0.4240.75 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
CVE-2020-15966 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 4.3 MEDIUM 4.3 MEDIUM
Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information via a crafted Chrome Extension.
CVE-2020-15965 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 6.8 MEDIUM 8.8 HIGH
Type confusion in V8 in Google Chrome prior to 85.0.4183.121 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.
CVE-2020-15964 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 6.8 MEDIUM 8.8 HIGH
Insufficient data validation in media in Google Chrome prior to 85.0.4183.121 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2020-15963 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 6.8 MEDIUM 9.6 CRITICAL
Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.
CVE-2020-15962 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 6.8 MEDIUM 8.8 HIGH
Insufficient policy validation in serial in Google Chrome prior to 85.0.4183.121 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.
CVE-2020-15961 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 6.8 MEDIUM 9.6 CRITICAL
Insufficient policy validation in extensions in Google Chrome prior to 85.0.4183.121 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.
CVE-2020-15960 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 6.8 MEDIUM 8.8 HIGH
Heap buffer overflow in storage in Google Chrome prior to 85.0.4183.121 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.
CVE-2020-15959 4 Debian, Fedoraproject, Google and 1 more 5 Debian Linux, Fedora, Chrome and 2 more 2024-11-21 4.3 MEDIUM 4.3 MEDIUM
Insufficient policy enforcement in networking in Google Chrome prior to 85.0.4183.102 allowed an attacker who convinced the user to enable logging to obtain potentially sensitive information from process memory via social engineering.
CVE-2020-15953 4 Debian, Fedoraproject, Libetpan Project and 1 more 4 Debian Linux, Fedora, Libetpan and 1 more 2024-11-21 5.8 MEDIUM 7.4 HIGH
LibEtPan through 1.9.4, as used in MailCore 2 through 0.6.3 and other products, has a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a meddler-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."
CVE-2020-15917 3 Claws-mail, Fedoraproject, Opensuse 4 Claws-mail, Fedora, Backports Sle and 1 more 2024-11-21 7.5 HIGH 9.8 CRITICAL
common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.
CVE-2020-15853 1 Fedoraproject 1 Supybot-fedora 2024-11-21 N/A 5.3 MEDIUM
supybot-fedora implements the command 'refresh', that refreshes the cache of all users from FAS. This takes quite a while to run, and zodbot stops responding to requests during this time.
CVE-2020-15811 5 Canonical, Debian, Fedoraproject and 2 more 5 Ubuntu Linux, Debian Linux, Fedora and 2 more 2024-11-21 4.0 MEDIUM 6.5 MEDIUM
An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.
CVE-2020-15810 5 Canonical, Debian, Fedoraproject and 2 more 5 Ubuntu Linux, Debian Linux, Fedora and 2 more 2024-11-21 3.5 LOW 6.5 MEDIUM
An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.
CVE-2020-15803 4 Debian, Fedoraproject, Opensuse and 1 more 5 Debian Linux, Fedora, Backports and 2 more 2024-11-21 4.3 MEDIUM 6.1 MEDIUM
Zabbix before 3.0.32rc1, 4.x before 4.0.22rc1, 4.1.x through 4.4.x before 4.4.10rc1, and 5.x before 5.0.2rc1 allows stored XSS in the URL Widget.
CVE-2020-15586 5 Cloudfoundry, Debian, Fedoraproject and 2 more 6 Cf-deployment, Routing-release, Debian Linux and 3 more 2024-11-21 4.3 MEDIUM 5.9 MEDIUM
Go before 1.13.13 and 1.14.x before 1.14.5 has a data race in some net/http servers, as demonstrated by the httputil.ReverseProxy Handler, because it reads a request body and writes a response at the same time.
CVE-2020-15567 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2024-11-21 4.4 MEDIUM 7.8 HIGH
An issue was discovered in Xen through 4.13.x, allowing Intel guest OS users to gain privileges or cause a denial of service because of non-atomic modification of a live EPT PTE. When mapping guest EPT (nested paging) tables, Xen would in some circumstances use a series of non-atomic bitfield writes. Depending on the compiler version and optimisation flags, Xen might expose a dangerous partially written PTE to the hardware, which an attacker might be able to race to exploit. A guest administrator or perhaps even an unprivileged guest user might be able to cause denial of service, data corruption, or privilege escalation. Only systems using Intel CPUs are vulnerable. Systems using AMD CPUs, and Arm systems, are not vulnerable. Only systems using nested paging (hap, aka nested paging, aka in this case Intel EPT) are vulnerable. Only HVM and PVH guests can exploit the vulnerability. The presence and scope of the vulnerability depends on the precise optimisations performed by the compiler used to build Xen. If the compiler generates (a) a single 64-bit write, or (b) a series of read-modify-write operations in the same order as the source code, the hypervisor is not vulnerable. For example, in one test build using GCC 8.3 with normal settings, the compiler generated multiple (unlocked) read-modify-write operations in source-code order, which did not constitute a vulnerability. We have not been able to survey compilers; consequently we cannot say which compiler(s) might produce vulnerable code (with which code-generation options). The source code clearly violates the C rules, and thus should be considered vulnerable.
CVE-2020-15565 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2024-11-21 6.1 MEDIUM 8.8 HIGH
An issue was discovered in Xen through 4.13.x, allowing x86 Intel HVM guest OS users to cause a host OS denial of service or possibly gain privileges because of insufficient cache write-back under VT-d. When page tables are shared between IOMMU and CPU, changes to them require flushing of both TLBs. Furthermore, IOMMUs may be non-coherent, and hence prior to flushing IOMMU TLBs, a CPU cache also needs writing back to memory after changes were made. Such writing back of cached data was missing in particular when splitting large page mappings into smaller granularity ones. A malicious guest may be able to retain read/write DMA access to frames returned to Xen's free pool, and later reused for another purpose. Host crashes (leading to a Denial of Service) and privilege escalation cannot be ruled out. Xen versions from at least 3.2 onwards are affected. Only x86 Intel systems are affected. x86 AMD as well as Arm systems are not affected. Only x86 HVM guests using hardware assisted paging (HAP), having a passed through PCI device assigned, and having page table sharing enabled can leverage the vulnerability. Note that page table sharing will be enabled (by default) only if Xen considers IOMMU and CPU large page size support compatible.
CVE-2020-15564 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2024-11-21 4.9 MEDIUM 6.5 MEDIUM
An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOP_register_vcpu_info. The hypercall VCPUOP_register_vcpu_info is used by a guest to register a shared region with the hypervisor. The region will be mapped into Xen address space so it can be directly accessed. On Arm, the region is accessed with instructions that require a specific alignment. Unfortunately, there is no check that the address provided by the guest will be correctly aligned. As a result, a malicious guest could cause a hypervisor crash by passing a misaligned address. A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). All Xen versions are vulnerable. Only Arm systems are vulnerable. x86 systems are not affected.
CVE-2020-15563 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2024-11-21 4.7 MEDIUM 6.5 MEDIUM
An issue was discovered in Xen through 4.13.x, allowing x86 HVM guest OS users to cause a hypervisor crash. An inverted conditional in x86 HVM guests' dirty video RAM tracking code allows such guests to make Xen de-reference a pointer guaranteed to point at unmapped space. A malicious or buggy HVM guest may cause the hypervisor to crash, resulting in Denial of Service (DoS) affecting the entire host. Xen versions from 4.8 onwards are affected. Xen versions 4.7 and earlier are not affected. Only x86 systems are affected. Arm systems are not affected. Only x86 HVM guests using shadow paging can leverage the vulnerability. In addition, there needs to be an entity actively monitoring a guest's video frame buffer (typically for display purposes) in order for such a guest to be able to leverage the vulnerability. x86 PV guests, as well as x86 HVM guests using hardware assisted paging (HAP), cannot leverage the vulnerability.