A flaw was found in the way the Linux kernel's networking subsystem handled the write queue between TCP disconnection and re-connections. A local attacker could use this flaw to trigger multiple use-after-free conditions potentially escalating their privileges on the system.

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nftables: mark set as dead when unbinding anonymous set with timeout

The Linux kernel CVE team has assigned CVE-2024-26643 to this issue.

Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024032150-CVE-2024-26643-4f9d@gregkh/T

Last updated 29 November 2024

Last updated 29 November 2024

A reference counter leak in ipxitfioctl function was found which results into use after free vulnerability that's triggerable from unprivileged userspace when IPX interface is configured.

References:

http://seclists.org/oss-sec/2017/q2/251

https://patchwork.ozlabs.org/patch/757549/

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee0d8d8482345ff97a75a7d747efc309f13b0d80

Chromium: CVE-2023-3422 Use after free in Guest View

Chromium: CVE-2023-3420 Type Confusion in V8

A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.

A use-after-free flaw was found in bssrefget in the net/wireless/scan.c in the Linux kernel. This issue can lead to a denial of service or arbitrary code execution.

A flaw was found in the linux kernels implementation of DCCP protocol in which a local user could create influence timing in which a skbuff could be used after it had been freed by the kernel. An attacker is able to craft structures allocated in this free memory will be able to create memory corruption, privilege escalation or crash the system. An attacker must have a local account access on the system, this is not a remote attack. An attack requires IPV6 support to be enabled in the system.

Initial message:

https://groups.google.com/forum/#!topic/syzkaller/vGUxJLcdKY

Proposed patch:

https://patchwork.ozlabs.org/patch/728808/

The parsecharstrings function in type1/t1load.c in FreeType 2 before 2.7 does not ensure that a font contains a glyph name, which allows remote attackers to cause a denial of service (heap-based buffer over-read) or possibly have unspecified other impact via a crafted file.

In the Linux kernel, the following vulnerability has been resolved:

firmware: armscmi: Harden accesses to the reset domains

Accessing reset domains descriptors by the index upon the SCMI drivers requests through the SCMI reset operations interface can potentially lead to out-of-bound violations if the SCMI driver misbehave.

Add an internal consistency check before any such domains descriptors accesses.

A vulnerability was found in a way libxml2 parses certain files. With the libxml2 in recovery mode, a maliciously crafted filed could cause libxml2 to crash.

References:

http://seclists.org/oss-sec/2016/q1/682

CVE assignment:

http://seclists.org/oss-sec/2016/q1/683

Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not scrub the environment before executing modprobe with elevated privileges. A local user can take advantage of this flaw for local root privilege escalation.

The gmp plugin in strongSwan before 5.5.3 does not properly validate RSA public keys before calling mpzpowmsec, which allows remote peers to cause a denial of service (floating point exception and process crash) via a crafted certificate.

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

Last updated 24 July 2024

From https://www.openwall.com/lists/oss-security/2021/08/30/1:

Security vulnerabilities were identified in the open source NTFS-3G and NTFSPROGS software. These vulnerabilities were confirmed and resolved. To our knowledge, these vulnerabilities have not been exploited.

These vulnerabilities may allow an attacker using a maliciously crafted NTFS-formatted image file or external storage to potentially execute arbitrary privileged code, if the attacker has either local access and the ntfs-3g binary is setuid root, or if the attacker has physical access to an external port to a computer which is configured to run the ntfs-3g binary or one of the ntfsprogs tools when the external storage is plugged into the computer. These vulnerabilities result from incorrect validation of some of the NTFS metadata that could potentially cause buffer overflows, which could be exploited by an attacker. Common ways for attackers to gain physical access to a machine is through social engineering or an evil maid attack on an unattended computer.

We recommend installing and applying the update with the security fixes, and advise to follow security guidance and frameworks such as NIST for assessing and improving an organization’s abilities to prevent, detect, and respond to security threats and cyber attacks.

AFFECTED PRODUCTS: All previous versions of open source NTFS-3G and NTFSPROGS.

WORKAROUND: None

SOLUTION: Upgrade to 2021.8.22

PROJECT URL: https://github.com/tuxera/ntfs-3g

ADVISORY ID: NTFS3G-SA-2021-0001

ISSUE DATE: 2021-08-30

SEVERITY: Moderate

CVEs: CVE-2021-33285, CVE-2021-35269, CVE-2021-35268, CVE-2021-33289, CVE-2021-33286, CVE-2021-35266, CVE-2021-33287, CVE-2021-35267, CVE-2021-39251, CVE-2021-39252, CVE-2021-39253, CVE-2021-39254, CVE-2021-39255, CVE-2021-39256, CVE-2021-39257, CVE-2021-39258, CVE-2021-39259, CVE-2021-39260, CVE-2021-39261, CVE-2021-39262, CVE-2021-39263

CVSS SCORE: 3.9-6.7

ACKNOWLEDGMENT: Jeremy Galindo, Akshay Ajayan, Kyle Zeng and Fish Wang for reporting these vulnerabilities.

A crafted NTFS image can cause a heap-based buffer overflow in ntfsnamesfullcollate in NTFS-3G through 2021.8.22.

A crafted NTFS image can cause a heap-based buffer overflow in ntfsmftrecalloc in NTFS-3G through 2021.8.22.

A crafted NTFS image can cause a heap-based buffer overflow in ntfschecklogclientarray in NTFS-3G through 2021.8.22.

A crafted NTFS image can cause heap exhaustion in ntfsgetattributevalue in NTFS-3G through 2021.8.22.

A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutlspkcs7verify function.

A Denial of Service vulnerability exists in mbed TLS 3.0.0 and earlier in the mbedtlspkcs12derivation function when an input password's length is 0.

A heap-buffer-overflow in Cairo when processing SVG content caused by compiler optimization, resulting in a potentially exploitable crash.

A buffer overflow resulting in a potentially exploitable crash due to memory allocation issues when handling large amounts of incoming data.