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ID

VAR-201912-0528


CVE

CVE-2019-8723


TITLE

Xcode Input validation vulnerability in toolchain

Trust: 0.8

sources: JVNDB: JVNDB-2019-013358

DESCRIPTION

Multiple issues in ld64 in the Xcode toolchains were addressed by updating to version ld64-507.4. This issue is fixed in Xcode 11.0. Compiling code without proper input validation could lead to arbitrary code execution with user privilege. Apple Xcode is an integrated development environment provided by Apple (Apple) to developers. It is mainly used to develop applications for Mac OS X and iOS. ld64 is one of the Apple toolchain linkers. There is a security vulnerability in the ld64 component in Apple Xcode versions prior to 11.0. The vulnerability is caused by the program not performing correct input validation. CVE-2019-8721: Pan ZhenPeng of Qihoo 360 Nirvan Team CVE-2019-8722: Pan ZhenPeng of Qihoo 360 Nirvan Team CVE-2019-8723: Pan ZhenPeng of Qihoo 360 Nirvan Team CVE-2019-8724: Pan ZhenPeng of Qihoo 360 Nirvan Team otool Available for: macOS Mojave 10.14.4 and later Impact: Processing a maliciously crafted file may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved state management. CVE-2019-8738: Pan ZhenPeng (@Peterpan0927) of Qihoo 360 Nirvan Team CVE-2019-8739: Pan ZhenPeng (@Peterpan0927) of Qihoo 360 Nirvan Team Installation note: Xcode 11.0 may be obtained from: https://developer.apple.com/xcode/downloads/ To check that the Xcode has been updated: * Select Xcode in the menu bar * Select About Xcode * The version after applying this update will be "11.0". Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEM5FaaFRjww9EJgvRBz4uGe3y0M0FAl2NDI4ACgkQBz4uGe3y 0M3yBg//WnHzKci0fwo78s/jomFP1EcSVj8FQ5T3ycwITMK01X5WDyZUHJw4rHJH l3NaJLFkjXXovzBl0aQzGHoRvOiYoMJeBCaZeix3dafLdA+6whZ8VREie4ncY31y EI0KoPxBxocLu0WaMUmEatDJsGqQWWFy0Q4LGGmDyOIXnrRqWJrLE7Qmm6IvOr1Q ViDpLeWzymHaAQiiXnpUR9nDvpCEA5irlbKzvmfA55FLzUYdh1RBJUjrsR+JcUJ0 IewyJD6FpFMzpOImQJ22oBArN++Fag6KjlmTDbmL1O2uCHbl1x71ZhOPBRhgWFkP X3nXTYFLGM22SWzOjBn8el05AAfOmkuISP9219HEXfbAYZliTQw37L2VlZ86nCn2 A3F258d8m1UAOh7NGvsDN4WUQ/QD4PQ0OUPSzQtztMXHZwoSiF92fw6epCkH10dV xb28tXuv4eI3aI2ncgf5fClOwsC6/IFeheTfimsL+6ccro2C1IiJvcMnBH7HBZ+9 k4Z414NOKlUsbhTX+8lcLKKzpN/WxppmyN01fIdwO2anu1IRXOI2D3TvRKFI+pkr u4u/ohjf8lmCgoDPyAa4YDmiYu9I5qMb/CmLwwhdYjX2NeUBSEPb3Ctga6jwP6RH /3kg2VAgACUG+nR08itzvCMwCzkILfiCSy6D9EkPed5aoPGIrP4= =9Hep -----END PGP SIGNATURE-----

Trust: 1.8

sources: NVD: CVE-2019-8723 // JVNDB: JVNDB-2019-013358 // VULHUB: VHN-160158 // PACKETSTORM: 154655

AFFECTED PRODUCTS

vendor:applemodel:xcodescope:ltversion:11.0

Trust: 1.0

vendor:applemodel:xcodescope:ltversion:11.0 (macos mojave 10.14.4 or later )

Trust: 0.8

sources: JVNDB: JVNDB-2019-013358 // NVD: CVE-2019-8723

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2019-8723
value: HIGH

Trust: 1.0

NVD: CVE-2019-8723
value: HIGH

Trust: 0.8

CNNVD: CNNVD-201909-1288
value: HIGH

Trust: 0.6

VULHUB: VHN-160158
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2019-8723
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-160158
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2019-8723
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2019-8723
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-160158 // JVNDB: JVNDB-2019-013358 // CNNVD: CNNVD-201909-1288 // NVD: CVE-2019-8723

PROBLEMTYPE DATA

problemtype:CWE-20

Trust: 1.9

sources: VULHUB: VHN-160158 // JVNDB: JVNDB-2019-013358 // NVD: CVE-2019-8723

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201909-1288

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-201909-1288

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2019-013358

PATCH
title:HT210609url:https://support.apple.com/en-us/HT210609
Trust: 0.8
title:HT210609url:https://support.apple.com/ja-jp/HT210609
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title:Apple Xcode ld64 Fixes for component security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=98675
Trust: 0.6
sources:
            
            
            JVNDB: JVNDB-2019-013358 // 
            
            
            
            CNNVD: CNNVD-201909-1288

EXTERNAL IDS
db:NVDid:CVE-2019-8723
Trust: 2.6
db:JVNDBid:JVNDB-2019-013358
Trust: 0.8
db:CNNVDid:CNNVD-201909-1288
Trust: 0.7
db:AUSCERTid:ESB-2019.3647
Trust: 0.6
db:VULHUBid:VHN-160158
Trust: 0.1
db:PACKETSTORMid:154655
Trust: 0.1
sources:
            
            
            VULHUB: VHN-160158 // 
            
            
            
            JVNDB: JVNDB-2019-013358 // 
            
            
            
            PACKETSTORM: 154655 // 
            
            
            
            CNNVD: CNNVD-201909-1288 // 
            
            
            
            NVD: CVE-2019-8723

REFERENCES
url:https://support.apple.com/ht210609
Trust: 1.7
url:https://nvd.nist.gov/vuln/detail/cve-2019-8723
Trust: 1.5
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-8723
Trust: 0.8
url:https://support.apple.com/en-au/ht210609
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2019.3647/
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url:https://support.apple.com/en-us/ht210609
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url:https://support.apple.com/kb/ht201222
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2019-8724
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2019-8738
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url:https://www.apple.com/support/security/pgp/
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url:https://developer.apple.com/xcode/downloads/
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url:https://nvd.nist.gov/vuln/detail/cve-2019-8722
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2019-8721
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2019-8739
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2019-3855
Trust: 0.1
sources:
            
            
            VULHUB: VHN-160158 // 
            
            
            
            JVNDB: JVNDB-2019-013358 // 
            
            
            
            PACKETSTORM: 154655 // 
            
            
            
            CNNVD: CNNVD-201909-1288 // 
            
            
            
            NVD: CVE-2019-8723

CREDITS
Apple
Trust: 0.1
sources:
            
            
            PACKETSTORM: 154655

SOURCES
db:VULHUBid:VHN-160158
db:JVNDBid:JVNDB-2019-013358
db:PACKETSTORMid:154655
db:CNNVDid:CNNVD-201909-1288
db:NVDid:CVE-2019-8723

LAST UPDATE DATE
2024-08-14T12:18:35.016000+00:00

SOURCES UPDATE DATE
db:VULHUBid:VHN-160158date:2019-12-22T00:00:00
db:JVNDBid:JVNDB-2019-013358date:2019-12-27T00:00:00
db:CNNVDid:CNNVD-201909-1288date:2021-10-29T00:00:00
db:NVDid:CVE-2019-8723date:2019-12-22T16:16:43.020

SOURCES RELEASE DATE
db:VULHUBid:VHN-160158date:2019-12-18T00:00:00
db:JVNDBid:JVNDB-2019-013358date:2019-12-27T00:00:00
db:PACKETSTORMid:154655date:2019-09-29T10:11:11
db:CNNVDid:CNNVD-201909-1288date:2019-09-27T00:00:00
db:NVDid:CVE-2019-8723date:2019-12-18T18:15:36.943