Vulnerabilities (CVE)

Filtered by vendor Debian Subscribe
Filtered by product Debian Linux
Total 9187 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-25682 3 Debian, Fedoraproject, Thekelleys 3 Debian Linux, Fedora, Dnsmasq 2023-11-07 8.3 HIGH 8.1 HIGH
A flaw was found in dnsmasq before 2.83. A buffer overflow vulnerability was discovered in the way dnsmasq extract names from DNS packets before validating them with DNSSEC data. An attacker on the network, who can create valid DNS replies, could use this flaw to cause an overflow with arbitrary data in a heap-allocated memory, possibly executing code on the machine. The flaw is in the rfc1035.c:extract_name() function, which writes data to the memory pointed by name assuming MAXDNAME*2 bytes are available in the buffer. However, in some code execution paths, it is possible extract_name() gets passed an offset from the base buffer, thus reducing, in practice, the number of available bytes that can be written in the buffer. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2020-25713 3 Debian, Fedoraproject, Librdf 3 Debian Linux, Fedora, Raptor Rdf Syntax Library 2023-11-07 4.0 MEDIUM 6.5 MEDIUM
A malformed input file can lead to a segfault due to an out of bounds array access in raptor_xml_writer_start_element_common.
CVE-2020-25674 2 Debian, Imagemagick 2 Debian Linux, Imagemagick 2023-11-07 4.3 MEDIUM 5.5 MEDIUM
WriteOnePNGImage() from coders/png.c (the PNG coder) has a for loop with an improper exit condition that can allow an out-of-bounds READ via heap-buffer-overflow. This occurs because it is possible for the colormap to have less than 256 valid values but the loop condition will loop 256 times, attempting to pass invalid colormap data to the event logger. The patch replaces the hardcoded 256 value with a call to MagickMin() to ensure the proper value is used. This could impact application availability when a specially crafted input file is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.
CVE-2020-27171 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2023-11-07 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-2020-26298 2 Debian, Redcarpet Project 2 Debian Linux, Redcarpet 2023-11-07 3.5 LOW 5.4 MEDIUM
Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit.
CVE-2020-25683 3 Debian, Fedoraproject, Thekelleys 3 Debian Linux, Fedora, Dnsmasq 2023-11-07 7.1 HIGH 5.9 MEDIUM
A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. A remote attacker, who can create valid DNS replies, could use this flaw to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in get_rdata() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVE-2020-25211 3 Debian, Fedoraproject, Linux 3 Debian Linux, Fedora, Linux Kernel 2023-11-07 3.6 LOW 6.0 MEDIUM
In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
CVE-2020-25651 3 Debian, Fedoraproject, Spice-space 3 Debian Linux, Fedora, Spice-vdagent 2023-11-07 3.3 LOW 6.4 MEDIUM
A flaw was found in the SPICE file transfer protocol. File data from the host system can end up in full or in parts in the client connection of an illegitimate local user in the VM system. Active file transfers from other users could also be interrupted, resulting in a denial of service. The highest threat from this vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent versions 0.20 and prior.
CVE-2020-27638 3 Debian, Fastd Project, Fedoraproject 3 Debian Linux, Fastd, Fedora 2023-11-07 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-2020-25097 4 Debian, Fedoraproject, Netapp and 1 more 4 Debian Linux, Fedora, Cloud Manager and 1 more 2023-11-07 5.0 MEDIUM 8.6 HIGH
An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.
CVE-2020-27671 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2023-11-07 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-2020-25709 4 Apple, Debian, Openldap and 1 more 5 Mac Os X, Macos, Debian Linux and 2 more 2023-11-07 5.0 MEDIUM 7.5 HIGH
A flaw was found in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed by OpenLDAP’s slapd server, to trigger an assertion failure. The highest threat from this vulnerability is to system availability.
CVE-2020-26154 4 Debian, Fedoraproject, Libproxy Project and 1 more 4 Debian Linux, Fedora, Libproxy and 1 more 2023-11-07 6.8 MEDIUM 9.8 CRITICAL
url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.
CVE-2020-25592 2 Debian, Saltstack 2 Debian Linux, Salt 2023-11-07 7.5 HIGH 9.8 CRITICAL
In SaltStack Salt through 3002, salt-netapi improperly validates eauth credentials and tokens. A user can bypass authentication and invoke Salt SSH.
CVE-2020-27672 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2023-11-07 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-2020-25626 3 Debian, Encode, Redhat 3 Debian Linux, Django Rest Framework, Ceph Storage 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
A flaw was found in Django REST Framework versions before 3.12.0 and before 3.11.2. When using the browseable API viewer, Django REST Framework fails to properly escape certain strings that can come from user input. This allows a user who can control those strings to inject malicious <script> tags, leading to a cross-site-scripting (XSS) vulnerability.
CVE-2020-26934 4 Debian, Fedoraproject, Opensuse and 1 more 5 Debian Linux, Fedora, Backports Sle and 2 more 2023-11-07 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-2020-27170 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2023-11-07 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-2020-26572 3 Debian, Fedoraproject, Opensc Project 3 Debian Linux, Fedora, Opensc 2023-11-07 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-2020-25665 2 Debian, Imagemagick 2 Debian Linux, Imagemagick 2023-11-07 4.3 MEDIUM 5.5 MEDIUM
The PALM image coder at coders/palm.c makes an improper call to AcquireQuantumMemory() in routine WritePALMImage() because it needs to be offset by 256. This can cause a out-of-bounds read later on in the routine. The patch adds 256 to bytes_per_row in the call to AcquireQuantumMemory(). This could cause impact to reliability. This flaw affects ImageMagick versions prior to 7.0.8-68.