Ubuntu

USN-5831-1: Linux kernel (Azure CVM) vulnerabilities

1 day 19 hours ago
Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-4378) Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42896) It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). (CVE-2022-3643) It was discovered that an integer overflow vulnerability existed in the Bluetooth subsystem in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-45934)

USN-5830-1: Linux kernel vulnerabilities

1 day 20 hours ago
It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43945) Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42896) It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). (CVE-2022-3643) It was discovered that an integer overflow vulnerability existed in the Bluetooth subsystem in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-45934)

USN-5822-2: Samba regression

2 days 17 hours ago
USN-5822-1 fixed vulnerabilities in Samba. The update for Ubuntu 20.04 LTS introduced regressions in certain environments. Pending investigation of these regressions, this update temporarily reverts the security fixes. We apologize for the inconvenience. Original advisory details: It was discovered that Samba incorrectly handled the bad password count logic. A remote attacker could possibly use this issue to bypass bad passwords lockouts. This issue was only addressed in Ubuntu 22.10. (CVE-2021-20251) Evgeny Legerov discovered that Samba incorrectly handled buffers in certain GSSAPI routines of Heimdal. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2022-3437) Tom Tervoort discovered that Samba incorrectly used weak rc4-hmac Kerberos keys. A remote attacker could possibly use this issue to elevate privileges. (CVE-2022-37966, CVE-2022-37967) It was discovered that Samba supported weak RC4/HMAC-MD5 in NetLogon Secure Channel. A remote attacker could possibly use this issue to elevate privileges. (CVE-2022-38023) Greg Hudson discovered that Samba incorrectly handled PAC parsing. On 32-bit systems, a remote attacker could use this issue to escalate privileges, or possibly execute arbitrary code. (CVE-2022-42898) Joseph Sutton discovered that Samba could be forced to issue rc4-hmac encrypted Kerberos tickets. A remote attacker could possibly use this issue to escalate privileges. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-45141) WARNING: The fixes included in these updates introduce several important behavior changes which may cause compatibility problems interacting with systems still expecting the former behavior. Please see the following upstream advisories for more information: https://www.samba.org/samba/security/CVE-2022-37966.html https://www.samba.org/samba/security/CVE-2022-37967.html https://www.samba.org/samba/security/CVE-2022-38023.html

USN-5829-1: Linux kernel (Raspberry Pi) vulnerabilities

3 days 16 hours ago
It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43945) Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42896) It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). (CVE-2022-3643) It was discovered that an integer overflow vulnerability existed in the Bluetooth subsystem in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-45934)

USN-5828-1: Kerberos vulnerabilities

3 days 18 hours ago
It was discovered that Kerberos incorrectly handled certain S4U2Self requests. An attacker could possibly use this issue to cause a denial of service. This issue was only addressed in Ubuntu 16.04 ESM and Ubuntu 18.04 LTS. (CVE-2018-20217) Greg Hudson discovered that Kerberos PAC implementation incorrectly handled certain parsing operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2022-42898)

USN-5827-1: Bind vulnerabilities

3 days 20 hours ago
Rob Schulhof discovered that Bind incorrectly handled a large number of UPDATE messages. A remote attacker could possibly use this issue to cause Bind to consume resources, resulting in a denial of service. (CVE-2022-3094) Borja Marcos discovered that Bind incorrectly handled certain RRSIG queries. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-3736) Maksym Odinintsev discovered that Bind incorrectly handled certain answers from stale cache. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-3924)

USN-5826-1: Privoxy vulnerabilities

4 days 1 hour ago
Joshua Rogers discovered that Privoxy incorrectly handled memory allocation. An attacker could possibly use this issue to cause a denial of service. (CVE-2021-44540) Artem Ivanov discovered that Privoxy incorrectly handled input validations. An attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. (CVE-2021-44543)

USN-5825-1: PAM vulnerability

4 days 5 hours ago
It was discovered that PAM did not correctly restrict login from an IP address that is not resolvable via DNS. An attacker could possibly use this issue to bypass authentication.

USN-5823-2: MySQL vulnerability

4 days 16 hours ago
USN-5823-1 fixed a vulnerability in MySQL. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to MySQL 5.7.41. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes. Please see the following for more information: https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-41.html https://www.oracle.com/security-alerts/cpujan2023.html

USN-5823-1: MySQL vulnerabilities

4 days 20 hours ago
Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 8.0.32 in Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 22.10. Ubuntu 18.04 LTS has been updated to MySQL 5.7.41. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes. Please see the following for more information: https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-41.html https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-32.html https://www.oracle.com/security-alerts/cpujan2023.html

USN-5821-2: wheel vulnerability

5 days ago
USN-5821-1 fixed a vulnerability in wheel. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Sebastian Chnelik discovered that wheel incorrectly handled certain file names when validated against a regex expression. An attacker could possibly use this issue to cause a denial of service.

USN-5822-1: Samba vulnerabilities

5 days 1 hour ago
It was discovered that Samba incorrectly handled the bad password count logic. A remote attacker could possibly use this issue to bypass bad passwords lockouts. This issue was only addressed in Ubuntu 22.10. (CVE-2021-20251) Evgeny Legerov discovered that Samba incorrectly handled buffers in certain GSSAPI routines of Heimdal. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2022-3437) Tom Tervoort discovered that Samba incorrectly used weak rc4-hmac Kerberos keys. A remote attacker could possibly use this issue to elevate privileges. (CVE-2022-37966, CVE-2022-37967) It was discovered that Samba supported weak RC4/HMAC-MD5 in NetLogon Secure Channel. A remote attacker could possibly use this issue to elevate privileges. (CVE-2022-38023) Greg Hudson discovered that Samba incorrectly handled PAC parsing. On 32-bit systems, a remote attacker could use this issue to escalate privileges, or possibly execute arbitrary code. (CVE-2022-42898) Joseph Sutton discovered that Samba could be forced to issue rc4-hmac encrypted Kerberos tickets. A remote attacker could possibly use this issue to escalate privileges. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-45141) WARNING: The fixes included in these updates introduce several important behavior changes which may cause compatibility problems interacting with systems still expecting the former behavior. Please see the following upstream advisories for more information: https://www.samba.org/samba/security/CVE-2022-37966.html https://www.samba.org/samba/security/CVE-2022-37967.html https://www.samba.org/samba/security/CVE-2022-38023.html

USN-5821-1: wheel vulnerability

5 days 5 hours ago
Sebastian Chnelik discovered that wheel incorrectly handled certain file names when validated against a regex expression. An attacker could possibly use this issue to cause a denial of service.

USN-5820-1: exuberant-ctags vulnerability

5 days 12 hours ago
Lorenz Hipp discovered a flaw in exuberant-ctags handling of the tag filename command-line argument. A crafted tag filename specified in the command line or in the configuration file could result in arbitrary command execution.

USN-5806-2: Ruby vulnerability

6 days ago
USN-5806-1 fixed vulnerabilities in Ruby. This update fixes the problem for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.10. Original advisory details: Hiroshi Tokumaru discovered that Ruby did not properly handle certain user input for applications which generate HTTP responses using cgi gem. An attacker could possibly use this issue to maliciously modify the response a user would receive from a vulnerable application.

USN-5819-1: HAProxy vulnerability

6 days ago
It was discovered that HAProxy incorrectly handled certain messages. A remote attacker could possibly use this issue to cause HAProxy to stop responding, resulting in a denial of service.

USN-5818-1: PHP vulnerability

6 days 1 hour ago
It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

USN-5817-1: Setuptools vulnerability

6 days 6 hours ago
Sebastian Chnelik discovered that setuptools incorrectly handled certain regex inputs. An attacker could possibly use this issue to cause a denial of service.

USN-5816-1: Firefox vulnerabilities

6 days 8 hours ago
Niklas Baumstark discovered that a compromised web child process of Firefox could disable web security opening restrictions, leading to a new child process being spawned within the file:// context. An attacker could potentially exploits this to obtain sensitive information. (CVE-2023-23597) Tom Schuster discovered that Firefox was not performing a validation check on GTK drag data. An attacker could potentially exploits this to obtain sensitive information. (CVE-2023-23598) Vadim discovered that Firefox was not properly sanitizing a curl command output when copying a network request from the developer tools panel. An attacker could potentially exploits this to hide and execute arbitrary commands. (CVE-2023-23599) Luan Herrera discovered that Firefox was not stopping navigation when dragging a URL from a cross-origin iframe into the same tab. An attacker potentially exploits this to spoof the user. (CVE-2023-23601) Dave Vandyke discovered that Firefox did not properly implement CSP policy when creating a WebSocket in a WebWorker. An attacker who was able to inject markup into a page otherwise protected by a Content Security Policy may have been able to inject an executable script. (CVE-2023-23602) Dan Veditz discovered that Firefox did not properly implement CSP policy on regular expression when using console.log. An attacker potentially exploits this to exfiltrate data from the browser. (CVE-2023-23603) Nika Layzell discovered that Firefox was not performing a validation check when parsing a non-system html document via DOMParser::ParseFromSafeString. An attacker potentially exploits this to bypass web security checks. (CVE-2023-23604) Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. (CVE-2023-23605, CVE-2023-23606)

USN-5815-1: Linux kernel (BlueField) vulnerabilities

1 week 2 days ago
It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20421) David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering. (CVE-2022-2663) It was discovered that the Intel 740 frame buffer driver in the Linux kernel contained a divide by zero vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3061) It was discovered that the sound subsystem in the Linux kernel contained a race condition in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3303) Gwnaun Jung discovered that the SFB packet scheduling implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3586) It was discovered that the NILFS2 file system implementation in the Linux kernel did not properly deallocate memory in certain error conditions. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3646) Hyunwoo Kim discovered that an integer overflow vulnerability existed in the PXA3xx graphics driver in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-39842) It was discovered that a race condition existed in the EFI capsule loader driver in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-40307) Zheng Wang and Zhuorao Yang discovered that the RealTek RTL8712U wireless driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-4095) It was discovered that the USB monitoring (usbmon) component in the Linux kernel did not properly set permissions on memory mapped in to user space processes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43750)
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