Filtered by vendor Gnu
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Total
1065 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2019-20633 | 1 Gnu | 1 Patch | 2024-02-28 | 4.3 MEDIUM | 5.5 MEDIUM |
| GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952. | |||||
| CVE-2020-14310 | 4 Canonical, Gnu, Opensuse and 1 more | 7 Ubuntu Linux, Grub2, Leap and 4 more | 2024-02-28 | 3.6 LOW | 6.0 MEDIUM |
| There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow. | |||||
| CVE-2020-12137 | 5 Canonical, Debian, Fedoraproject and 2 more | 6 Ubuntu Linux, Debian Linux, Fedora and 3 more | 2024-02-28 | 4.3 MEDIUM | 6.1 MEDIUM |
| GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts. This behavior may contribute to XSS attacks against list-archive visitors, because an HTTP reply from an archive web server may lack a MIME type, and a web browser may perform MIME sniffing, conclude that the MIME type should have been text/html, and execute JavaScript code. | |||||
| CVE-2020-11501 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2024-02-28 | 5.8 MEDIUM | 7.4 HIGH |
| GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol. | |||||
| CVE-2020-15705 | 7 Canonical, Debian, Gnu and 4 more | 14 Ubuntu Linux, Debian Linux, Grub2 and 11 more | 2024-02-28 | 4.4 MEDIUM | 6.4 MEDIUM |
| GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions. | |||||
| CVE-2020-24240 | 1 Gnu | 1 Bison | 2024-02-28 | 7.1 HIGH | 5.5 MEDIUM |
| GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when a '\0' byte is encountered. NOTE: there is a risk only if Bison is used with untrusted input, and the observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug report was intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison. | |||||
| CVE-2020-14309 | 2 Gnu, Opensuse | 2 Grub2, Leap | 2024-02-28 | 4.6 MEDIUM | 6.7 MEDIUM |
| There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data. | |||||
| CVE-2019-20910 | 1 Gnu | 1 Libredwg | 2024-02-28 | 5.8 MEDIUM | 8.1 HIGH |
| An issue was discovered in GNU LibreDWG through 0.9.3. Crafted input will lead to a heap-based buffer over-read in decode_R13_R2000 in decode.c, a different vulnerability than CVE-2019-20011. | |||||
| CVE-2020-1752 | 4 Canonical, Debian, Gnu and 1 more | 9 Ubuntu Linux, Debian Linux, Glibc and 6 more | 2024-02-28 | 3.7 LOW | 7.0 HIGH |
| A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32. | |||||
| CVE-2020-6096 | 3 Debian, Fedoraproject, Gnu | 3 Debian Linux, Fedora, Glibc | 2024-02-28 | 6.8 MEDIUM | 8.1 HIGH |
| An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data. | |||||
| CVE-2020-14150 | 1 Gnu | 1 Bison | 2024-02-28 | 2.1 LOW | 5.5 MEDIUM |
| GNU Bison before 3.5.4 allows attackers to cause a denial of service (application crash). NOTE: there is a risk only if Bison is used with untrusted input, and an observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug reports were intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison. | |||||
| CVE-2019-20915 | 1 Gnu | 1 Libredwg | 2024-02-28 | 5.8 MEDIUM | 8.1 HIGH |
| An issue was discovered in GNU LibreDWG through 0.9.3. Crafted input will lead to a heap-based buffer over-read in bit_write_TF in bits.c. | |||||
| CVE-2019-20911 | 1 Gnu | 1 Libredwg | 2024-02-28 | 4.3 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in GNU LibreDWG through 0.9.3. Crafted input will lead to denial of service in bit_calc_CRC in bits.c, related to a for loop. | |||||
| CVE-2020-15706 | 7 Canonical, Debian, Gnu and 4 more | 14 Ubuntu Linux, Debian Linux, Grub2 and 11 more | 2024-02-28 | 4.4 MEDIUM | 6.4 MEDIUM |
| GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions. | |||||
| CVE-2020-14308 | 2 Gnu, Opensuse | 2 Grub2, Leap | 2024-02-28 | 4.4 MEDIUM | 6.4 MEDIUM |
| In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process. | |||||
| CVE-2017-9107 | 2 Fedoraproject, Gnu | 2 Fedora, Adns | 2024-02-28 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in adns before 1.5.2. It overruns reading a buffer if a domain ends with backslash. If the query domain ended with \, and adns_qf_quoteok_query was specified, qdparselabel would read additional bytes from the buffer and try to treat them as the escape sequence. It would depart the input buffer and start processing many bytes of arbitrary heap data as if it were the query domain. Eventually it would run out of input or find some other kind of error, and declare the query domain invalid. But before then it might outrun available memory and crash. In principle this could be a denial of service attack. | |||||
| CVE-2020-15707 | 8 Canonical, Debian, Gnu and 5 more | 15 Ubuntu Linux, Debian Linux, Grub2 and 12 more | 2024-02-28 | 4.4 MEDIUM | 6.4 MEDIUM |
| Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions. | |||||
| CVE-2017-9109 | 3 Fedoraproject, Gnu, Opensuse | 3 Fedora, Adns, Leap | 2024-02-28 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in adns before 1.5.2. It fails to ignore apparent answers before the first RR that was found the first time. when this is fixed, the second answer scan finds the same RRs at the first. Otherwise, adns can be confused by interleaving answers for the CNAME target, with the CNAME itself. In that case the answer data structure (on the heap) can be overrun. With this fixed, it prefers to look only at the answer RRs which come after the CNAME, which is at least arguably correct. | |||||
| CVE-2017-9108 | 3 Fedoraproject, Gnu, Opensuse | 3 Fedora, Adns, Leap | 2024-02-28 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in adns before 1.5.2. adnshost mishandles a missing final newline on a stdin read. It is wrong to increment used as well as setting r, since used is incremented according to r, later. Rather one should be doing what read() would have done. Without this fix, adnshost may read and process one byte beyond the buffer, perhaps crashing or perhaps somehow leaking the value of that byte. | |||||
| CVE-2017-9103 | 3 Fedoraproject, Gnu, Opensuse | 3 Fedora, Adns, Leap | 2024-02-28 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in adns before 1.5.2. pap_mailbox822 does not properly check st from adns__findlabel_next. Without this, an uninitialised stack value can be used as the first label length. Depending on the circumstances, an attacker might be able to trick adns into crashing the calling program, leaking aspects of the contents of some of its memory, causing it to allocate lots of memory, or perhaps overrunning a buffer. This is only possible with applications which make non-raw queries for SOA or RP records. | |||||