Vulnerabilities (CVE)

Filtered by vendor Debian Subscribe
Filtered by product Debian Linux
Total 10082 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-44730 3 Canonical, Debian, Fedoraproject 4 Snapd, Ubuntu Linux, Debian Linux and 1 more 2026-06-17 6.9 MEDIUM 7.8 HIGH
snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1
CVE-2021-44717 3 Debian, Golang, Opengroup 3 Debian Linux, Go, Unix 2026-06-17 5.8 MEDIUM 4.8 MEDIUM
Go before 1.16.12 and 1.17.x before 1.17.5 on UNIX allows write operations to an unintended file or unintended network connection as a consequence of erroneous closing of file descriptor 0 after file-descriptor exhaustion.
CVE-2021-44716 3 Debian, Golang, Netapp 3 Debian Linux, Go, Cloud Insights Telegraf 2026-06-17 5.0 MEDIUM 7.5 HIGH
net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests.
CVE-2021-44648 3 Debian, Fedoraproject, Gnome 3 Debian Linux, Fedora, Gdkpixbuf 2026-06-17 6.8 MEDIUM 8.8 HIGH
GNOME gdk-pixbuf 2.42.6 is vulnerable to a heap-buffer overflow vulnerability when decoding the lzw compressed stream of image data in GIF files with lzw minimum code size equals to 12.
CVE-2021-44538 4 Cinny Project, Debian, Matrix and 1 more 6 Cinny, Debian Linux, Element and 3 more 2026-06-17 7.5 HIGH 9.8 CRITICAL
The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted sequence of messages to manipulate the state of the receiver's session in such a way that, for some buffer sizes, a buffer overflow happens on a call to olm_session_describe. Furthermore, safe buffer sizes were undocumented. The overflow content is partially controllable by the attacker and limited to ASCII spaces and digits. The known affected products are Element Web And SchildiChat Web.
CVE-2021-44532 3 Debian, Nodejs, Oracle 9 Debian Linux, Node.js, Graalvm and 6 more 2026-06-17 5.0 MEDIUM 5.3 MEDIUM
Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.
CVE-2021-44420 5 Canonical, Debian, Djangoproject and 2 more 5 Ubuntu Linux, Debian Linux, Django and 2 more 2026-06-17 7.5 HIGH 7.3 HIGH
In Django 2.2 before 2.2.25, 3.1 before 3.1.14, and 3.2 before 3.2.10, HTTP requests for URLs with trailing newlines could bypass upstream access control based on URL paths.
CVE-2021-44227 2 Debian, Gnu 2 Debian Linux, Mailman 2026-06-17 6.8 MEDIUM 8.8 HIGH
In GNU Mailman before 2.1.38, a list member or moderator can get a CSRF token and craft an admin request (using that token) to set a new admin password or make other changes.
CVE-2021-44224 6 Apache, Apple, Debian and 3 more 12 Http Server, Mac Os X, Macos and 9 more 2026-06-17 6.4 MEDIUM 8.2 HIGH
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).
CVE-2021-44143 3 Debian, Fedoraproject, Isync Project 3 Debian Linux, Fedora, Isync 2026-06-17 7.5 HIGH 9.8 CRITICAL
A flaw was found in mbsync in isync 1.4.0 through 1.4.3. Due to an unchecked condition, a malicious or compromised IMAP server could use a crafted mail message that lacks headers (i.e., one that starts with an empty line) to provoke a heap overflow, which could conceivably be exploited for remote code execution.
CVE-2021-44142 6 Canonical, Debian, Fedoraproject and 3 more 23 Ubuntu Linux, Debian Linux, Fedora and 20 more 2026-06-17 9.0 HIGH 8.8 HIGH
The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.
CVE-2021-44040 2 Apache, Debian 2 Traffic Server, Debian Linux 2026-06-17 5.0 MEDIUM 7.5 HIGH
Improper Input Validation vulnerability in request line parsing of Apache Traffic Server allows an attacker to send invalid requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.3 and 9.0.0 to 9.1.1.
CVE-2021-44026 3 Debian, Fedoraproject, Roundcube 3 Debian Linux, Fedora, Webmail 2026-06-17 7.5 HIGH 9.8 CRITICAL
Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params.
CVE-2021-44025 3 Debian, Fedoraproject, Roundcube 3 Debian Linux, Fedora, Webmail 2026-06-17 4.3 MEDIUM 6.1 MEDIUM
Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to XSS in handling an attachment's filename extension when displaying a MIME type warning message.
CVE-2021-43980 2 Apache, Debian 2 Tomcat, Debian Linux 2026-06-17 N/A 3.7 LOW
The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.
CVE-2021-43976 5 Debian, Fedoraproject, Linux and 2 more 23 Debian Linux, Fedora, Linux Kernel and 20 more 2026-06-17 2.1 LOW 4.6 MEDIUM
In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic).
CVE-2021-43860 4 Debian, Fedoraproject, Flatpak and 1 more 4 Debian Linux, Fedora, Flatpak and 1 more 2026-06-17 6.8 MEDIUM 8.2 HIGH
Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.12.3 and 1.10.6, Flatpak doesn't properly validate that the permissions displayed to the user for an app at install time match the actual permissions granted to the app at runtime, in the case that there's a null byte in the metadata file of an app. Therefore apps can grant themselves permissions without the consent of the user. Flatpak shows permissions to the user during install by reading them from the "xa.metadata" key in the commit metadata. This cannot contain a null terminator, because it is an untrusted GVariant. Flatpak compares these permissions to the *actual* metadata, from the "metadata" file to ensure it wasn't lied to. However, the actual metadata contents are loaded in several places where they are read as simple C-style strings. That means that, if the metadata file includes a null terminator, only the content of the file from *before* the terminator gets compared to xa.metadata. Thus, any permissions that appear in the metadata file after a null terminator are applied at runtime but not shown to the user. So maliciously crafted apps can give themselves hidden permissions. Users who have Flatpaks installed from untrusted sources are at risk in case the Flatpak has a maliciously crafted metadata file, either initially or in an update. This issue is patched in versions 1.12.3 and 1.10.6. As a workaround, users can manually check the permissions of installed apps by checking the metadata file or the xa.metadata key on the commit metadata.
CVE-2021-43859 5 Debian, Fedoraproject, Jenkins and 2 more 11 Debian Linux, Fedora, Jenkins and 8 more 2026-06-17 5.0 MEDIUM 7.5 HIGH
XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. See GHSA-rmr5-cpv2-vgjf for further details on a workaround if an upgrade is not possible.
CVE-2021-43845 2 Debian, Teluu 2 Debian Linux, Pjsip 2026-06-17 6.4 MEDIUM 8.2 HIGH
PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.
CVE-2021-43818 5 Debian, Fedoraproject, Lxml and 2 more 12 Debian Linux, Fedora, Lxml and 9 more 2026-06-17 6.8 MEDIUM 8.2 HIGH
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.