Vulnerabilities (CVE)

Filtered by vendor Debian Subscribe
Filtered by product Debian Linux
Total 10082 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-38508 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-06-17 4.3 MEDIUM 4.3 MEDIUM
By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVE-2021-38507 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port 8443) did not opt-in to opportunistic encryption; a network attacker could forward a connection from the browser to port 443 to port 8443, causing the browser to treat the content of port 8443 as same-origin with HTTP. This was resolved by disabling the Opportunistic Encryption feature, which had low usage. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVE-2021-38506 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-06-17 4.3 MEDIUM 4.3 MEDIUM
Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVE-2021-38504 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-06-17 6.8 MEDIUM 8.8 HIGH
When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVE-2021-38503 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-06-17 7.5 HIGH 10.0 CRITICAL
The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVE-2021-38502 2 Debian, Mozilla 2 Debian Linux, Thunderbird 2026-06-17 4.3 MEDIUM 5.9 MEDIUM
Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. This vulnerability affects Thunderbird < 91.2.
CVE-2021-38500 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-06-17 6.8 MEDIUM 8.8 HIGH
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
CVE-2021-38496 2 Debian, Mozilla 4 Debian Linux, Firefox, Firefox Esr and 1 more 2026-06-17 6.8 MEDIUM 8.8 HIGH
During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
CVE-2021-38300 3 Debian, Linux, Netapp 19 Debian Linux, Linux Kernel, Cloud Backup and 16 more 2026-06-17 7.2 HIGH 7.8 HIGH
arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.
CVE-2021-38291 2 Debian, Ffmpeg 2 Debian Linux, Ffmpeg 2026-06-17 5.0 MEDIUM 7.5 HIGH
FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an assertion failure at src/libavutil/mathematics.c.
CVE-2021-38205 2 Debian, Linux 2 Debian Linux, Linux Kernel 2026-06-17 2.1 LOW 3.3 LOW
drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (i.e., the real IOMEM pointer).
CVE-2021-38204 2 Debian, Linux 2 Debian Linux, Linux Kernel 2026-06-17 4.6 MEDIUM 6.8 MEDIUM
drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations.
CVE-2021-38173 3 Debian, Digint, Fedoraproject 3 Debian Linux, Btrbk, Fedora 2026-06-17 7.5 HIGH 9.8 CRITICAL
Btrbk before 0.31.2 allows command execution because of the mishandling of remote hosts filtering SSH commands using ssh_filter_btrbk.sh in authorized_keys.
CVE-2021-38171 2 Debian, Ffmpeg 2 Debian Linux, Ffmpeg 2026-06-17 7.5 HIGH 9.8 CRITICAL
adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the init_get_bits return value, which is a necessary step because the second argument to init_get_bits can be crafted.
CVE-2021-38165 3 Debian, Fedoraproject, Lynx Project 3 Debian Linux, Fedora, Lynx 2026-06-17 2.6 LOW 5.3 MEDIUM
Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI data.
CVE-2021-38161 2 Apache, Debian 2 Traffic Server, Debian Linux 2026-06-17 6.8 MEDIUM 8.1 HIGH
Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.
CVE-2021-38160 4 Debian, Linux, Netapp and 1 more 9 Debian Linux, Linux Kernel, Element Software and 6 more 2026-06-17 7.2 HIGH 7.8 HIGH
In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior
CVE-2021-38114 2 Debian, Ffmpeg 2 Debian Linux, Ffmpeg 2026-06-17 4.3 MEDIUM 5.5 MEDIUM
libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868.
CVE-2021-38022 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
Inappropriate implementation in WebAuthentication in Google Chrome prior to 96.0.4664.45 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
CVE-2021-38021 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2026-06-17 4.3 MEDIUM 6.5 MEDIUM
Inappropriate implementation in referrer in Google Chrome prior to 96.0.4664.45 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.