medium
5.3
CWE
416
Advisory Published
Updated

CVE-2021-22321: Use After Free

First published: Mon Mar 22 2021(Updated: )

There is a use-after-free vulnerability in a Huawei product. A module cannot deal with specific operations in special scenarios. Attackers can exploit this vulnerability by performing malicious operations. This can cause memory use-after-free, compromising normal service. Affected product include some versions of NIP6300, NIP6600, NIP6800, S1700, S2700, S5700, S6700 , S7700, S9700, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500.

Credit: psirt@huawei.com

Affected SoftwareAffected VersionHow to fix
Huawei NIP6300 firmware=v500r001c30
Huawei NIP6300 firmware=v500r001c60
Huawei NIP6300 firmware
Huawei NIP6600=v500r001c30
Huawei NIP6600 firmware
Huawei NIP6800 Firmware=v500r001c60
Huawei NIP6800 Firmware
Huawei S12700 Firmware=v200r007c01
Huawei S12700 Firmware=v200r007c01b102
Huawei S12700 Firmware=v200r008c00
Huawei S12700 Firmware=v200r010c00
Huawei S12700 Firmware=v200r010c00spc300
Huawei S12700 Firmware=v200r011c00
Huawei S12700 Firmware=v200r011c00spc100
Huawei S12700 Firmware=v200r011c10
Huawei S12700 Firmware
Huawei S1700 Firmware=v200r009c00spc200
Huawei S1700 Firmware=v200r009c00spc500
Huawei S1700 Firmware=v200r010c00
Huawei S1700 Firmware=v200r010c00spc300
Huawei S1700 Firmware=v200r011c00
Huawei S1700 Firmware=v200r011c00spc100
Huawei S1700 Firmware=v200r011c10
Huawei S1700 Firmware
Huawei S2700 Firmware=v200r008c00
Huawei S2700 Firmware=v200r010c00
Huawei S2700 Firmware=v200r010c00spc300
Huawei S2700 Firmware=v200r011c00
Huawei S2700 Firmware=v200r011c00spc100
Huawei S2700 Firmware=v200r011c10
Huawei S2700 Firmware
Huawei S5700HI Firmware=v200r008c00
Huawei S5700HI Firmware=v200r010c00
Huawei S5700HI Firmware=v200r010c00spc300
Huawei S5700HI Firmware=v200r011c00
Huawei S5700HI Firmware=v200r011c00spc100
Huawei S5700HI Firmware=v200r011c10
Huawei S5700HI Firmware=v200r011c10spc100
Huawei S5700 Firmware
Huawei 6700EI Firmware=v200r008c00
Huawei 6700EI Firmware=v200r010c00
Huawei 6700EI Firmware=v200r010c00spc300
Huawei 6700EI Firmware=v200r011c00
Huawei 6700EI Firmware=v200r011c00spc100
Huawei 6700EI Firmware=v200r011c10
Huawei 6700EI Firmware=v200r011c10spc100
Huawei S6700 Firmware
Huawei Campus S7700 firmware=v200r008c00
Huawei Campus S7700 firmware=v200r010c00
Huawei Campus S7700 firmware=v200r010c00spc300
Huawei Campus S7700 firmware=v200r011c00
Huawei Campus S7700 firmware=v200r011c00spc100
Huawei Campus S7700 firmware=v200r011c10
Huawei Campus S7700
Huawei LSW S9700 firmware=v200r007c01
Huawei LSW S9700 firmware=v200r007c01b102
Huawei LSW S9700 firmware=v200r008c00
Huawei LSW S9700 firmware=v200r010c00
Huawei LSW S9700 firmware=v200r010c00spc300
Huawei LSW S9700 firmware=v200r011c00
Huawei LSW S9700 firmware=v200r011c00spc100
Huawei LSW S9700 firmware=v200r011c10
Huawei Campus LSW S9700
Huawei Secospace USG6300 Firmware=v500r001c30
Huawei Secospace USG6300 Firmware=v500r001c60
Huawei Secospace USG6300 firmware
Huawei Secospace USG6500=v500r001c30
Huawei Secospace USG6500=v500r001c60
Huawei Secospace USG6500 firmware
Huawei Secospace USG6600 firmware=v500r001c30
Huawei Secospace USG6600 firmware=v500r001c60
Huawei Secospace USG6600 firmware
Huawei Unified Security Gateway Firmware=v500r001c30
Huawei Unified Security Gateway Firmware=v500r001c60
Huawei Eudemon USG9500

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-22321?

    CVE-2021-22321 has been classified with a high severity due to its potential to compromise system memory integrity.

  • How do I fix CVE-2021-22321?

    To mitigate CVE-2021-22321, update the affected Huawei products to the latest firmware versions that address this vulnerability.

  • What are the affected products related to CVE-2021-22321?

    CVE-2021-22321 affects various Huawei firmware versions including NIP6300, NIP6600, NIP6800, and several models from the S series.

  • What type of vulnerability is CVE-2021-22321?

    CVE-2021-22321 is a use-after-free vulnerability that can be exploited through specific malicious operations.

  • Can CVE-2021-22321 lead to service disruption?

    Yes, exploitation of CVE-2021-22321 can lead to service disruption by compromising normal system operations.

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