Test ID:	1.3.6.1.4.1.25623.1.0.893157
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-3157-1)
Summary:	The remote host is missing an update for the Debian 'bluez' package(s) announced via the DLA-3157-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'bluez' package(s) announced via the DLA-3157-1 advisory. Vulnerability Insight: Several vulnerabilities were discovered in BlueZ, the Linux Bluetooth protocol stack. An attacker could cause a denial-of-service (DoS) or leak information. CVE-2019-8921 SDP infoleak, the vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation of BlueZ. By crafting a malicious CSTATE, it is possible to trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. CVE-2019-8922 SDP Heap Overflow, this vulnerability lies in the SDP protocol handling of attribute requests as well. By requesting a huge number of attributes at the same time, an attacker can overflow the static buffer provided to hold the response. CVE-2021-41229 sdp_cstate_alloc_buf allocates memory which will always be hung in the singly linked list of cstates and will not be freed. This will cause a memory leak over time. The data can be a very large object, which can be caused by an attacker continuously sending sdp packets and this may cause the service of the target device to crash. CVE-2021-43400 A use-after-free in gatt-database.c can occur when a client disconnects during D-Bus processing of a WriteValue call. CVE-2022-0204 A heap overflow vulnerability was found in bluez. An attacker with local network access could pass specially crafted files causing an application to halt or crash, leading to a denial of service. CVE-2022-39176 BlueZ allows physically proximate attackers to obtain sensitive information because profiles/audio/avrcp.c does not validate params_len. CVE-2022-39177 BlueZ allows physically proximate attackers to cause a denial of service because malformed and invalid capabilities can be processed in profiles/audio/avdtp.c. For Debian 10 buster, these problems have been fixed in version 5.50-1.2~ deb10u3. We recommend that you upgrade your bluez packages. For the detailed security status of bluez please refer to its security tracker page at: [link moved to references] Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'bluez' package(s) on Debian 10. Solution: Please install the updated package(s). CVSS Score: 6.4 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2019-8921 https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/ https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html Common Vulnerability Exposure (CVE) ID: CVE-2019-8922 Common Vulnerability Exposure (CVE) ID: CVE-2021-41229 https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html Common Vulnerability Exposure (CVE) ID: CVE-2021-43400 https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=838c0dc7641e1c991c0f3027bf94bee4606012f8 Common Vulnerability Exposure (CVE) ID: CVE-2022-0204 https://security.gentoo.org/glsa/202209-16 https://github.com/bluez/bluez/commit/591c546c536b42bef696d027f64aa22434f8c3f0 https://github.com/bluez/bluez/security/advisories/GHSA-479m-xcq5-9g2q https://bugzilla.redhat.com/show_bug.cgi?id=2039807 Common Vulnerability Exposure (CVE) ID: CVE-2022-39176 https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1977968 https://ubuntu.com/security/notices/USN-5481-1 Common Vulnerability Exposure (CVE) ID: CVE-2022-39177
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