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CVE-2023-27536

curl: GSS delegation too eager connection re-use

An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.

CVSS 3.1 · 5.9 Medium EPSS 1.8% KEV · Not listed
Vendors
Debian Fedoraproject Haxx and 3 more
Products
Debian Linux Fedora Libcurl and 13 more
CVE-2023-27535

curl: FTP too eager connection reuse

An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain FTP settings such as CURLOPT_FTP_ACCOUNT, CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPT_FTP_SSL_CCC, and CURLOPT_USE_SSL were not included in the configuration match checks, causing them to match too easily. This could lead to libcurl using the wrong credentials when performing a transfer, potentially allowing unauthorized access to sensitive information.

CVSS 3.1 · 5.9 Medium EPSS 1.8% KEV · Not listed
Vendors
Debian Fedoraproject Haxx and 3 more
Products
Debian Linux Fedora Libcurl and 13 more
CVE-2023-27534

curl: SFTP path ~ resolving discrepancy

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.

CVSS 3.1 · 8.8 High EPSS 2.4% KEV · Not listed
Vendors
Broadcom Fedoraproject Haxx and 3 more
Products
Brocade Fabric Operating System Firmware Fedora Curl and 12 more
CVE-2023-27533

curl: TELNET option IAC injection

A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform option negotiation without the application's intent. This vulnerability could be exploited if an application allows user input, thereby enabling attackers to execute arbitrary code on the system.

CVSS 3.1 · 9.8 Critical EPSS 2.2% KEV · Not listed
Vendors
Fedoraproject Haxx Netapp and 2 more
Products
Fedora Curl Active Iq Unified Manager and 12 more
CVE-2023-25136

openssh: the functions order_hostkeyalgs() and list_hostkey_types() leads to double-free vulnerability

OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."

CVSS 3.1 · 6.5 Medium EPSS 89.8% KEV · Not listed
Vendors
Fedoraproject Netapp Openbsd and 1 more
Products
Fedora 500f 500f Firmware and 7 more
CVE-2023-23916

curl: HTTP multi-header compression denial of service

An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.

CVSS 3.1 · 6.5 Medium EPSS 1.7% KEV · Not listed
Vendors
Debian Fedoraproject Haxx and 3 more
Products
Debian Linux Fedora Curl and 16 more
CVE-2023-23915

curl: HSTS amnesia with --parallel

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality to behave incorrectly when multiple URLs are requested in parallel. Using its HSTS support, curl can be instructed to use HTTPS instead of using an insecure clear-text HTTP step even when HTTP is provided in the URL. This HSTS mechanism would however surprisingly fail when multiple transfers are done in parallel as the HSTS cache file gets overwritten by the most recentlycompleted transfer. A later HTTP-only transfer to the earlier host name would then *not* get upgraded properly to HSTS.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Haxx Netapp Redhat and 1 more
Products
Curl Active Iq Unified Manager Clustered Data Ontap and 10 more
CVE-2023-23914

curl: HSTS ignored on multiple requests

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Using its HSTS support, curl can be instructed to use HTTPS instead of usingan insecure clear-text HTTP step even when HTTP is provided in the URL. ThisHSTS mechanism would however surprisingly be ignored by subsequent transferswhen done on the same command line because the state would not be properlycarried on.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Haxx Netapp Redhat and 1 more
Products
Curl Active Iq Unified Manager Clustered Data Ontap and 10 more
CVE-2023-3212

kernel: gfs2: NULL pointer dereference in gfs2_evict_inode()

A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 2 more
Products
Debian Linux Fedora Linux Kernel and 11 more
CVE-2023-3141

kernel: Use after free bug in r592_remove

A use-after-free flaw was found in r592_remove in drivers/memstick/host/r592.c in media access in the Linux Kernel. This flaw allows a local attacker to crash the system at device disconnect, possibly leading to a kernel information leak.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp and 1 more
Products
Debian Linux Linux Kernel Hci Baseboard Management Controller and 3 more
CVE-2023-2898

kernel: A null-ptr-deref bug in f2fs_write_end_io in fs/f2fs/data.c

There is a null-pointer-dereference flaw found in f2fs_write_end_io in fs/f2fs/data.c in the Linux kernel. This flaw allows a local privileged user to cause a denial of service problem.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp
Products
Debian Linux Linux Kernel H300s and 9 more
CVE-2023-0361

gnutls: timing side-channel in the TLS RSA key exchange code

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.

CVSS 3.1 · 7.4 High EPSS 1.5% KEV · Not listed
Vendors
Debian Fedoraproject Gnu and 2 more
Products
Debian Linux Fedora Gnutls and 5 more
CVE-2022-47520

kernel: an out-of-bounds read in drivers/net/wireless/microchip/wilc1000/hif.c

An issue was discovered in the Linux kernel before 6.0.11. Missing offset validation in drivers/net/wireless/microchip/wilc1000/hif.c in the WILC1000 wireless driver can trigger an out-of-bounds read when parsing a Robust Security Network (RSN) information element from a Netlink packet.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp
Products
Debian Linux Linux Kernel H300s and 9 more
CVE-2022-47518

kernel: a heap-based buffer overflow in drivers/net/wireless/microchip/wilc1000/cfg80211.c

An issue was discovered in the Linux kernel before 6.0.11. Missing validation of the number of channels in drivers/net/wireless/microchip/wilc1000/cfg80211.c in the WILC1000 wireless driver can trigger a heap-based buffer overflow when copying the list of operating channels from Wi-Fi management frames.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp
Products
Debian Linux Linux Kernel H300s and 9 more
CVE-2022-45061

python: CPU denial of service via inefficient IDNA decoder

An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.

CVSS 3.1 · 7.5 High EPSS 3.3% KEV · Not listed
Vendors
Fedoraproject Netapp Python and 1 more
Products
Fedora Active Iq Unified Manager Bootstrap Os and 10 more