Vulnerabilities > CVE-2017-7483 - Out-of-bounds Read vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
Rxvt 2.7.10 is vulnerable to a denial of service attack by passing the value -2^31 inside a terminal escape code, which results in a non-invertible integer that eventually leads to a segfault due to an out of bounds read.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 | |
OS | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
Nessus
NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-670.NASL description This update for rxvt-unicode fixes the following issue : While urxvt is not directly affected by CVE-2017-7483 we have added a patch to harden urxvt to avoid similar bugs in the future. (boo#1036456) last seen 2020-06-05 modified 2017-06-09 plugin id 100715 published 2017-06-09 reporter This script is Copyright (C) 2017-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/100715 title openSUSE Security Update : rxvt-unicode (openSUSE-2017-670) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2017-670. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(100715); script_version("3.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-7483"); script_name(english:"openSUSE Security Update : rxvt-unicode (openSUSE-2017-670)"); script_summary(english:"Check for the openSUSE-2017-670 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update for rxvt-unicode fixes the following issue : While urxvt is not directly affected by CVE-2017-7483 we have added a patch to harden urxvt to avoid similar bugs in the future. (boo#1036456)" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1036456" ); script_set_attribute( attribute:"solution", value:"Update the affected rxvt-unicode packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rxvt-unicode"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rxvt-unicode-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rxvt-unicode-debugsource"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2"); script_set_attribute(attribute:"patch_publication_date", value:"2017/06/09"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/09"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.2", reference:"rxvt-unicode-9.21-6.3.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"rxvt-unicode-debuginfo-9.21-6.3.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"rxvt-unicode-debugsource-9.21-6.3.1") ) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rxvt-unicode / rxvt-unicode-debuginfo / rxvt-unicode-debugsource"); }
NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2017-121-01.NASL description New rxvt packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix a security issue. last seen 2020-06-01 modified 2020-06-02 plugin id 99917 published 2017-05-02 reporter This script is Copyright (C) 2017-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/99917 title Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 / current : rxvt (SSA:2017-121-01)