
CVE-2020-35519 – Ubuntu Security Notice USN-4947-1
https://notcve.org/view.php?id=CVE-2020-35519
06 May 2021 — An out-of-bounds (OOB) memory access flaw was found in x25_bind in net/x25/af_x25.c in the Linux kernel version v5.12-rc5. A bounds check failure allows a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo de acceso a la memoria fuera de los límites (OOB) en la función x25_bi... • https://bugzilla.redhat.com/show_bug.cgi?id=1908251 • CWE-125: Out-of-bounds Read •

CVE-2021-3501 – kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu->run
https://notcve.org/view.php?id=CVE-2021-3501
05 May 2021 — A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability. Se encontró un fallo en el kernel de Linux en versiones anteriores a 5.12. El valor de internal.ndata, en la API de KVM, es asignado a un índice de matriz, que puede ser actualizado por un... • https://bugzilla.redhat.com/show_bug.cgi?id=1950136 • CWE-787: Out-of-bounds Write •

CVE-2021-29489 – Options structure open to XSS if passed unfiltered
https://notcve.org/view.php?id=CVE-2021-29489
05 May 2021 — Highcharts JS is a JavaScript charting library based on SVG. In Highcharts versions 8 and earlier, the chart options structure was not systematically filtered for XSS vectors. The potential impact was that content from untrusted sources could execute code in the end user's browser. The vulnerability is patched in version 9. As a workaround, implementers who are not able to upgrade may apply DOMPurify recursively to the options structure to filter out malicious markup. • https://github.com/highcharts/highcharts/security/advisories/GHSA-8j65-4pcq-xq95 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2021-3426 – python: Information disclosure via pydoc
https://notcve.org/view.php?id=CVE-2021-3426
03 May 2021 — There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7. Se presenta un fallo en pydoc de Pytho... • https://bugzilla.redhat.com/show_bug.cgi?id=1935913 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2021-31440 – Linux Kernel eBPF Improper Input Validation Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-31440
03 May 2021 — This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary c... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=10bf4e83167cc68595b85fd73bb91e8f2c086e36 • CWE-682: Incorrect Calculation •

CVE-2021-31879
https://notcve.org/view.php?id=CVE-2021-31879
29 Apr 2021 — GNU Wget through 1.21.1 does not omit the Authorization header upon a redirect to a different origin, a related issue to CVE-2018-1000007. GNU Wget versiones hasta 1.21.1, no omite el encabezado Authorization tras un redireccionamiento a un origen diferente, un problema relacionado con CVE-2018-1000007 • https://mail.gnu.org/archive/html/bug-wget/2021-02/msg00002.html • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVE-2021-25214 – A broken inbound incremental zone update (IXFR) can cause named to terminate unexpectedly
https://notcve.org/view.php?id=CVE-2021-25214
29 Apr 2021 — In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed. En BIND versiones 9.8.5 posteriores a 9.8.8, v... • http://www.openwall.com/lists/oss-security/2021/04/29/1 • CWE-617: Reachable Assertion •

CVE-2021-25215 – An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself
https://notcve.org/view.php?id=CVE-2021-25215
29 Apr 2021 — In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as... • http://www.openwall.com/lists/oss-security/2021/04/29/1 • CWE-617: Reachable Assertion •

CVE-2021-25216 – A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack
https://notcve.org/view.php?id=CVE-2021-25216
29 Apr 2021 — In BIND 9.5.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.11.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.1 of the BIND 9.17 development branch, BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND's default settings the vulnerable code path is not exposed, but a server can be rendered vulnerable by explicitly setting values for... • http://www.openwall.com/lists/oss-security/2021/04/29/1 • CWE-125: Out-of-bounds Read •

CVE-2021-23133 – Linux Kernel sctp_destroy_sock race condition
https://notcve.org/view.php?id=CVE-2021-23133
22 Apr 2021 — A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SO... • http://www.openwall.com/lists/oss-security/2021/05/10/1 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •