CVSS: 5.9EPSS: 1%CPEs: 29EXPL: 0CVE-2023-4806 – Glibc: potential use-after-free in getaddrinfo()
https://notcve.org/view.php?id=CVE-2023-4806
18 Sep 2023 — A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL an... • http://www.openwall.com/lists/oss-security/2023/10/03/4 • CWE-416: Use After Free •
CVSS: 6.5EPSS: 1%CPEs: 38EXPL: 1CVE-2023-4527 – Glibc: stack read overflow in getaddrinfo in no-aaaa mode
https://notcve.org/view.php?id=CVE-2023-4527
18 Sep 2023 — A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash. Se encontró una falla en glibc. Cuando se llama a la función getaddrinfo con la familia de direcciones AF_UNSPEC y el sistema está configurado con el modo no-aaaa a través de /etc/resolv.co... • http://www.openwall.com/lists/oss-security/2023/09/25/1 • CWE-121: Stack-based Buffer Overflow CWE-125: Out-of-bounds Read •
CVSS: 7.8EPSS: 0%CPEs: 58EXPL: 0CVE-2023-3899 – Subscription-manager: inadequate authorization of com.redhat.rhsm1 d-bus interface allows local users to modify configuration
https://notcve.org/view.php?id=CVE-2023-3899
23 Aug 2023 — A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary confi... • https://access.redhat.com/errata/RHSA-2023:4701 • CWE-285: Improper Authorization CWE-863: Incorrect Authorization •
CVSS: 7.8EPSS: 0%CPEs: 35EXPL: 0CVE-2023-0494 – X.Org Server DeepCopyPointerClasses Use-After-Free Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-0494
07 Feb 2023 — A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions. This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the abilit... • https://bugzilla.redhat.com/show_bug.cgi?id=2165995 • CWE-416: Use After Free •
CVSS: 9.0EPSS: 0%CPEs: 14EXPL: 2CVE-2022-4254 – sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters
https://notcve.org/view.php?id=CVE-2022-4254
24 Jan 2023 — sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters A vulnerability was found in SSSD, in the libsss_certmap functionality. PKINIT enables a client to authenticate to the KDC using an X.509 certificate and the corresponding private key, rather than a passphrase or keytab. FreeIPA uses mapping rules to map a certificate presented during a PKINIT authentication request to the corresponding principal. The mapping filter is vulnerable to LDAP filter injection. The search result can be i... • https://access.redhat.com/security/cve/CVE-2022-4254 • CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') •
CVSS: 7.8EPSS: 0%CPEs: 26EXPL: 3CVE-2023-0179 – kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan
https://notcve.org/view.php?id=CVE-2023-0179
24 Jan 2023 — A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution. Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discov... • https://github.com/TurtleARM/CVE-2023-0179-PoC • CWE-190: Integer Overflow or Wraparound •
CVSS: 8.6EPSS: 0%CPEs: 12EXPL: 0CVE-2022-2601 – grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass
https://notcve.org/view.php?id=CVE-2022-2601
16 Nov 2022 — A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism. Se encontró un desbordamiento del búfer en grub_font_construct_glyph(). Una fuente pf2 manipulada maliciosamente puede provocar un desbordamien... • https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 41EXPL: 0CVE-2021-3695 – grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap
https://notcve.org/view.php?id=CVE-2021-3695
20 Jun 2022 — A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw af... • https://bugzilla.redhat.com/show_bug.cgi?id=1991685 • CWE-787: Out-of-bounds Write •
CVSS: 6.9EPSS: 0%CPEs: 40EXPL: 0CVE-2021-3696 – grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling
https://notcve.org/view.php?id=CVE-2021-3696
20 Jun 2022 — A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12. Puede producirse una escritura fuera de límites de la p... • https://bugzilla.redhat.com/show_bug.cgi?id=1991686 • CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 39EXPL: 0CVE-2021-3697 – grub2: Crafted JPEG image can lead to buffer underflow write in the heap
https://notcve.org/view.php?id=CVE-2021-3697
20 Jun 2022 — A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12. Una imagen JPEG diseñada puede conllevar que el lector de JPEG desborde su p... • https://bugzilla.redhat.com/show_bug.cgi?id=1991687 • CWE-787: Out-of-bounds Write •