Vulnerabilities > CVE-2015-8863 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Off-by-one error in the tokenadd function in jv_parse.c in jq allows remote attackers to cause a denial of service (crash) via a long JSON-encoded number, which triggers a heap-based buffer overflow.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 2 | |
| 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 Amazon Linux Local Security Checks NASL id ALA_ALAS-2016-705.NASL description A heap-based buffer overflow flaw was found in the tokenadd() function. By tricking a victim into processing a specially crafted JSON file, an attacker could use this flaw to crash jq or, potentially, execute arbitrary code on the victim last seen 2020-06-01 modified 2020-06-02 plugin id 91464 published 2016-06-06 reporter This script is Copyright (C) 2016-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/91464 title Amazon Linux AMI : jq (ALAS-2016-705) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-551.NASL description jq was updated to fix one security issue. This security issue was fixed : - CVE-2015-8863: Heap buffer overflow in tokenadd() function (boo#976992). last seen 2020-06-05 modified 2016-05-05 plugin id 90904 published 2016-05-05 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/90904 title openSUSE Security Update : jq (openSUSE-2016-551) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201612-20.NASL description The remote host is affected by the vulnerability described in GLSA-201612-20 (jq: Buffer overflow) An off-by-one error was discovered in the tokenadd function in jv_parse.c which triggers a heap-based buffer overflow. Impact : A remote attacker could trick a victim into processing a specially crafted JSON file, possibly resulting in the execution of arbitrary code with the privileges of the process. Additionally, a remote attacker could cause a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 95636 published 2016-12-08 reporter This script is Copyright (C) 2016 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/95636 title GLSA-201612-20 : jq: Buffer overflow NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-550.NASL description jq was updated to fix one security issue. This security issue was fixed : - CVE-2015-8863: Heap buffer overflow in tokenadd() function (boo#976992). last seen 2020-06-05 modified 2016-05-05 plugin id 90903 published 2016-05-05 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/90903 title openSUSE Security Update : jq (openSUSE-2016-550)
Redhat
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References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802231
- http://www.openwall.com/lists/oss-security/2016/04/23/2
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00012.html
- http://www.openwall.com/lists/oss-security/2016/04/23/1
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00014.html
- https://github.com/stedolan/jq/commit/8eb1367ca44e772963e704a700ef72ae2e12babd
- https://github.com/stedolan/jq/issues/995
- http://rhn.redhat.com/errata/RHSA-2016-1098.html
- http://rhn.redhat.com/errata/RHSA-2016-1099.html
- http://rhn.redhat.com/errata/RHSA-2016-1106.html
- https://security.gentoo.org/glsa/201612-20