CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2023-3138 – libX11: InitExt.c can overwrite unintended portions of the Display structure if the extension request leads to a buffer overflow
https://notcve.org/view.php?id=CVE-2023-3138
A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, an out-of-bounds value provided by a malicious server (or a malicious proxy-in-the-middle) can only overwrite other portions of the Display structure and not write outside the bounds of the Display structure itself, possibly causing the client to crash with this memory corruption. • https://access.redhat.com/security/cve/CVE-2023-3138 https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/304a654a0d57bf0f00d8998185f0360332cfa36c https://lists.x.org/archives/xorg-announce/2023-June/003406.html https://lists.x.org/archives/xorg-announce/2023-June/003407.html https://security.netapp.com/advisory/ntap-20231208-0008 https://bugzilla.redhat.com/show_bug.cgi?id=2213748 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2023-1393 – X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-1393
A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later. A vulnerability was found in X.Org Server. This flaw occurs if a client explicitly destroys the compositor overlay window (aka COW), where Xserver leaves a dangling pointer to that window in the CompScreen structure, which will later trigger a use-after-free issue. • https://gitlab.freedesktop.org/xorg/xserver/-/commit/26ef545b3502f61ca722a7a3373507e88ef64110 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPNQYHUI63DB5FHK6EOI3Z4C6YQZGZKI https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H3EVO3OQV6T4BSABWZ2TU3PY5TJTEQZ2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MEHSYYFGBN3G4RS2HJXKQ5NBMOAZ5F2F https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ • CWE-416: Use After Free •
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
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 ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the DeepCopyPointerClasses function. • https://bugzilla.redhat.com/show_bug.cgi?id=2165995 https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec https://lists.x.org/archives/xorg-announce/2023-February/003320.html https://security.gentoo.org/glsa/202305-30 https://access.redhat.com/security/cve/CVE-2023-0494 • CWE-416: Use After Free •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2022-44617 – libXpm: Runaway loop on width of 0 and enormous height
https://notcve.org/view.php?id=CVE-2022-44617
A flaw was found in libXpm. When processing a file with width of 0 and a very large height, some parser functions will be called repeatedly and can lead to an infinite loop, resulting in a Denial of Service in the application linked to the library. • https://bugzilla.redhat.com/show_bug.cgi?id=2160193 https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/f80fa6ae47ad4a5beacb28 https://gitlab.freedesktop.org/xorg/lib/libxpm/-/merge_requests/9 https://lists.debian.org/debian-lts-announce/2023/06/msg00021.html https://lists.x.org/archives/xorg-announce/2023-January/003312.html https://access.redhat.com/security/cve/CVE-2022-44617 • CWE-20: Improper Input Validation CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2022-4883 – libXpm: compression commands depend on $PATH
https://notcve.org/view.php?id=CVE-2022-4883
A flaw was found in libXpm. When processing files with .Z or .gz extensions, the library calls external programs to compress and uncompress files, relying on the PATH environment variable to find these programs, which could allow a malicious user to execute other programs by manipulating the PATH environment variable. • https://bugzilla.redhat.com/show_bug.cgi?id=2160213 https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/515294bb8023a45ff91669 https://gitlab.freedesktop.org/xorg/lib/libxpm/-/merge_requests/9 https://lists.debian.org/debian-lts-announce/2023/06/msg00021.html https://lists.x.org/archives/xorg-announce/2023-January/003312.html https://access.redhat.com/security/cve/CVE-2022-4883 • CWE-426: Untrusted Search Path •