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ALSA-2021:4382 — Moderate: json-c security and bug fix update

Affected: AlmaLinux:8: json-c-devel, AlmaLinux:8: json-c-doc

JSON-C implements a reference counting object model that allows users to easily construct JavaScript Object Notation (JSON) objects in C, output them as JSON formatted strings, and parse JSON formatted strings back into the C representation of JSON objects.

Security Fix(es):

* json-c: integer overflow and out-of-bounds write via a large JSON file (CVE-2020-12762)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

bdu:2021-03538

Withdrawn: BELL-CVE-2020-12762 — CVE-2020-12762 does not affect BellSoft software

Withdrawn by the publisher.

certfr-2022-avi-386 — De multiples vulnérabilités ont été découvertes dans IBM QRadar SIEM. Certaines d'entre elles permettent à un attaquant…

certfr-2022-avi-386

cnvd-2021-28273

EUVD-2026-257612

fkie_cve-2020-12762

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

GHSA-3797-gmjf-45gm

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

gsd-2020-12762

ICSA-22-258-05 — Siemens SINEC INS

The package ua-parser-js before 0.7.23 are vulnerable to Regular Expression Denial of Service (ReDoS) in multiple regexes (see linked commit for more info). json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend. Axios NPM package 0.21.0 contains a Server-Side Request Forgery (SSRF) vulnerability where an attacker is able to bypass a proxy by providing a URL that responds with a redirect to a restricted host or IP address. Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions. axios is vulnerable to Inefficient Regular Expression Complexity There is a carry propagation bug in the MIPS32 and MIPS64 squaring procedure. Many EC algorithms are affected, including some of the TLS 1.3 default curves. Impact was not analyzed in detail, because the pre-requisites for attack are considered unlikely and include reusing private keys. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH private key among multip…

msrc_CVE-2020-12762 — json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file as demonstrated by printbuf_m…

msrc_CVE-2020-12762

OESA-2023-1186 — libfastjson security update

Affected: openEuler:20.03-LTS-SP1: libfastjson, openEuler:20.03-LTS-SP3: libfastjson, openEuler:22.03-LTS: libfastjson, openEuler:22.03-LTS-SP1: libfastjson

libfastjson is a fork from json-c, and is currently under development. The aim of this is not to provide a slightly modified clone of json-c. It's aim is to provide: a small library with essential json handling functions, sufficiently good json support (not 100% standards compliant), be very fast in processing. Security Fix(es): json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.(CVE-2020-12762)

openSUSE-SU-2022:0184-1 — Security update for json-c

Security update for json-c

RHSA-2024:0411 — Red Hat Security Advisory: libfastjson security update

libfastjson: integer overflow and out-of-bounds write via a large JSON file

RLSA-2023:6431 — Moderate: libfastjson security update

Affected: Rocky Linux:9: libfastjson

The libfastjson library provides essential JavaScript Object Notation (JSON) handling functions. The library enables users to construct JSON objects in C, output them as JSON-formatted strings, and convert JSON-formatted strings back to the C representation of JSON objects.

Security Fix(es):

* json-c, libfastjson: integer overflow and out-of-bounds write via a large JSON file (CVE-2020-12762)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 9.3 Release Notes linked from the References section.

SSA-202008 — SSA-202008: Multiple Vulnerabilities in Ruggedcom Rox Before V2.17.0

An issue was discovered in shadow 4.5. newgidmap (in shadow-utils) is setuid and allows an unprivileged user to be placed in a user namespace where setgroups(2) is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if the administrator has used "group blacklisting" (e.g., chmod g-rwx) to restrict access to paths. This flaw effectively reverts a security feature in the kernel (in particular, the /proc/self/setgroups knob) to prevent this sort of privilege escalation. GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey. remember_Ktype in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.30, allows attackers to trigger excessive memory consumption (aka OOM). This can occur during execution of cxxfilt. binutils version 2.32 and earlier contains a Integer Overflow vulnerability in objdump, bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc that can result in Integer overflow trigger heap overflow. Successful exploitation allows execution of arbitrary code.. This attack appear to be exploitable via Local. This vulnerability appears to have been fixed in after commit 3a551c7a1b80fca579461774860574eabfd7f18f. libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the ar…

SUSE-SU-2022:0184-1 — Security update for json-c

Security update for json-c

UBUNTU-CVE-2020-12762

Affected: Ubuntu:Pro:14.04:LTS: json-c, Ubuntu:16.04:LTS: json-c, Ubuntu:18.04:LTS: json-c, Ubuntu:20.04:LTS: json-c

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

WID-SEC-W-2022-0571 — Red Hat Enterprise Linux: Mehrere Schwachstellen

Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Cross-Site-Scripting-Angriff durchzuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, beliebigen Code auszuführen, Dateien zu manipulieren und einen nicht spezifizierten Angriff durchzuführen.