Vulnerabilities > CVE-2016-9802 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Bluez 5.42
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
LOW Summary
In BlueZ 5.42, a buffer over-read was identified in "l2cap_packet" function in "monitor/packet.c" source file. This issue can be triggered by processing a corrupted dump file and will result in btmon crash.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-1339-1.NASL description This update for bluez fixes the following issues : Security vulnerability addressed : CVE-2016-9797: Fixed a buffer over-read in l2cap_dump() (bsc#1013708). CVE-2016-9798: Fixed a use-after-free in conf_opt() (bsc#1013712). CVE-2016-9917: Fixed a heap-based buffer overflow in read_n() (bsc#1015171). CVE-2016-9802: Fixed a buffer over-read in l2cap_packet() (bsc#1013893). CVE-2016-9918: Fixed an out-of-bounds stack read in packet_hexdump(), which could be triggered by processing a corrupted dump file and will result in a crash of the hcidump tool (bsc#1015173) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 125459 published 2019-05-28 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125459 title SUSE SLED12 / SLES12 Security Update : bluez (SUSE-SU-2019:1339-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-1353-2.NASL description This update for bluez fixes the following issues : Security issues fixed : CVE-2016-9797: Fixed a buffer over-read in l2cap_dump() (bsc#1013708). CVE-2016-9798: Fixed a use-after-free in conf_opt() (bsc#1013712). CVE-2016-9917: Fixed a heap-based buffer overflow in read_n() (bsc#1015171). CVE-2016-9802: Fixed a buffer over-read in l2cap_packet() (bsc#1013893). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 130087 published 2019-10-21 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/130087 title SUSE SLED15 / SLES15 Security Update : bluez (SUSE-SU-2019:1353-2) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-1353-1.NASL description This update for bluez fixes the following issues : Security issues fixed : CVE-2016-9797: Fixed a buffer over-read in l2cap_dump() (bsc#1013708). CVE-2016-9798: Fixed a use-after-free in conf_opt() (bsc#1013712). CVE-2016-9917: Fixed a heap-based buffer overflow in read_n() (bsc#1015171). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 125467 published 2019-05-28 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125467 title SUSE SLED15 / SLES15 Security Update : bluez (SUSE-SU-2019:1353-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2559.NASL description According to the versions of the bluez packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In BlueZ 5.42, a buffer overflow was observed in last seen 2020-05-08 modified 2019-12-19 plugin id 132276 published 2019-12-19 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/132276 title EulerOS 2.0 SP3 : bluez (EulerOS-SA-2019-2559) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2380.NASL description According to the versions of the bluez packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In BlueZ 5.42, a use-after-free was identified in last seen 2020-05-08 modified 2019-12-10 plugin id 131872 published 2019-12-10 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131872 title EulerOS 2.0 SP2 : bluez (EulerOS-SA-2019-2380) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-1476.NASL description This update for bluez fixes the following issues : Security issues fixed : - CVE-2016-9797: Fixed a buffer over-read in l2cap_dump() (bsc#1013708). - CVE-2016-9798: Fixed a use-after-free in conf_opt() (bsc#1013712). - CVE-2016-9917: Fixed a heap-based buffer overflow in read_n() (bsc#1015171). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 125618 published 2019-05-31 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125618 title openSUSE Security Update : bluez (openSUSE-2019-1476)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00069.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00069.html
- http://www.securityfocus.com/bid/94652
- http://www.securityfocus.com/bid/94652
- https://www.spinics.net/lists/linux-bluetooth/msg68898.html
- https://www.spinics.net/lists/linux-bluetooth/msg68898.html