Vulnerabilities (CVE)

Filtered by vendor Gnu Subscribe
Total 1065 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-43414 1 Gnu 1 Hurd 2023-11-07 6.9 MEDIUM 7.0 HIGH
An issue was discovered in GNU Hurd before 0.9 20210404-9. The use of an authentication protocol in the proc server is vulnerable to man-in-the-middle attacks, which can be exploited for local privilege escalation to get full root access.
CVE-2021-43413 1 Gnu 1 Hurd 2023-11-07 9.0 HIGH 8.8 HIGH
An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.
CVE-2021-43412 1 Gnu 1 Hurd 2023-11-07 7.2 HIGH 7.8 HIGH
An issue was discovered in GNU Hurd before 0.9 20210404-9. libports accepts fake notification messages from any client on any port, which can lead to port use-after-free. This can be exploited for local privilege escalation to get full root access.
CVE-2021-43411 1 Gnu 1 Hurd 2023-11-07 8.5 HIGH 7.5 HIGH
An issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a setuid executable, there's a window of time when the process already has the new privileges, but still refers to the old task and is accessible through the old process port. This can be exploited to get full root access.
CVE-2021-43332 2 Debian, Gnu 2 Debian Linux, Mailman 2023-11-07 4.0 MEDIUM 6.5 MEDIUM
In GNU Mailman before 2.1.36, the CSRF token for the Cgi/admindb.py admindb page contains an encrypted version of the list admin password. This could potentially be cracked by a moderator via an offline brute-force attack.
CVE-2021-43331 2 Debian, Gnu 2 Debian Linux, Mailman 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options page can execute arbitrary JavaScript for XSS.
CVE-2021-42097 2 Debian, Gnu 2 Debian Linux, Mailman 2023-11-07 8.5 HIGH 8.0 HIGH
GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).
CVE-2021-42096 2 Debian, Gnu 2 Debian Linux, Mailman 2023-11-07 4.0 MEDIUM 4.3 MEDIUM
GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A certain csrf_token value is derived from the admin password, and may be useful in conducting a brute-force attack against that password.
CVE-2021-3326 5 Debian, Fujitsu, Gnu and 2 more 17 Debian Linux, M10-1, M10-1 Firmware and 14 more 2023-11-07 5.0 MEDIUM 7.5 HIGH
The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.
CVE-2021-38604 3 Fedoraproject, Gnu, Oracle 8 Fedora, Glibc, Communications Cloud Native Core Binding Support Function and 5 more 2023-11-07 5.0 MEDIUM 7.5 HIGH
In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.
CVE-2021-35942 3 Debian, Gnu, Netapp 7 Debian Linux, Glibc, Active Iq Unified Manager and 4 more 2023-11-07 6.4 MEDIUM 9.1 CRITICAL
The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.
CVE-2021-33574 4 Debian, Fedoraproject, Gnu and 1 more 20 Debian Linux, Fedora, Glibc and 17 more 2023-11-07 7.5 HIGH 9.8 CRITICAL
The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact.
CVE-2021-30184 2 Fedoraproject, Gnu 2 Fedora, Chess 2023-11-07 6.8 MEDIUM 7.8 HIGH
GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc.
CVE-2021-27645 3 Debian, Fedoraproject, Gnu 3 Debian Linux, Fedora, Glibc 2023-11-07 1.9 LOW 2.5 LOW
The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.
CVE-2021-26937 3 Debian, Fedoraproject, Gnu 3 Debian Linux, Fedora, Screen 2023-11-07 7.5 HIGH 9.8 CRITICAL
encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.
CVE-2021-20294 1 Gnu 1 Binutils 2023-11-07 6.8 MEDIUM 7.8 HIGH
A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.
CVE-2021-20233 4 Fedoraproject, Gnu, Netapp and 1 more 8 Fedora, Grub2, Ontap Select Deploy Administration Utility and 5 more 2023-11-07 7.2 HIGH 8.2 HIGH
A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2021-20232 3 Fedoraproject, Gnu, Redhat 3 Fedora, Gnutls, Enterprise Linux 2023-11-07 7.5 HIGH 9.8 CRITICAL
A flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potential consequences.
CVE-2021-20231 4 Fedoraproject, Gnu, Netapp and 1 more 5 Fedora, Gnutls, Active Iq Unified Manager and 2 more 2023-11-07 7.5 HIGH 9.8 CRITICAL
A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.
CVE-2021-20225 4 Fedoraproject, Gnu, Netapp and 1 more 8 Fedora, Grub2, Ontap Select Deploy Administration Utility and 5 more 2023-11-07 7.2 HIGH 6.7 MEDIUM
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.