PT-2017-4018 · Mozilla+2 · Firefox+2

Thanh Bui · Published 2017-05-30 · Updated 2024-12-12 · CVE-2017-7822

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 56

Description The issue is related to the implementation of the AES-GCM mode in the WebCrypto API, which is affected by a use-after-free memory issue. This could potentially allow a remote attacker to gain unauthorized access to protected information. Additionally, the AES-GCM implementation incorrectly accepts 0-length IV, which should be at least 1 according to the NIST Special Publication 800-38D specification, potentially allowing the authentication key to be determined in some cases.

Recommendations For versions prior to 56, update to version 56 or later to resolve the issue. As a temporary workaround, consider restricting the use of the WebCrypto API until a patch is available. Avoid using the IV parameter with a length of 0 in the affected API endpoint until the issue is resolved.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2017-2437

ALT-PU-2018-1854

BDU:2021-00177

CVE-2017-7822

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

USN-3435-1

USN-3435-2

Affected Products

Alt Linux

Firefox

Ubuntu

References · 1897

• https://mozilla.org/en-US/security/advisories/mfsa2017-21 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7814 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-7822 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7818 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2017-21 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7793 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7822 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7815 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-7822 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-7822 · Vendor Advisory
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=1212483 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7816 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7820 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-7822 · Vendor Advisory