9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.003 Low
EPSS
Percentile
71.2%
zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field and has been assigned the CVE id CVE-2022-37434.
As this only affects applications that call inflateGetHeader directly then applications using Qt are not directly affected by this at all. The symbol may still be exploited if used in conjunction with another vulnerability or if the application uses this function directly.
Solution: Apply the following patches (two from Gerrit, or single downloadable patch) or update to Qt 6.4.0, Qt 6.3.2, Qt 6.2.6 or Qt 5.15.11
Patches:
dev: <https://codereview.qt-project.org/c/qt/qtbase/+/429597> and <https://codereview.qt-project.org/c/qt/qtbase/+/430422>
Qt 6.4: <https://codereview.qt-project.org/c/qt/qtbase/+/429655> and <https://codereview.qt-project.org/c/qt/qtbase/+/430870>
Qt 6.3: <https://codereview.qt-project.org/c/qt/qtbase/+/429654> and <https://codereview.qt-project.org/c/qt/qtbase/+/430919> or <https://download.qt.io/official_releases/qt/6.3/CVE-2022-37434-qtbase-6.3.patch>
Qt 6.2: <https://codereview.qt-project.org/c/qt/tqtc-qtbase/+/429679> and <https://codereview.qt-project.org/c/qt%2Ftqtc-qtbase/+/430921> or <https://download.qt.io/official_releases/qt/6.2/CVE-2022-37434-qtbase-6.2.patch>
Qt 5.15: <https://codereview.qt-project.org/c/qt%2Ftqtc-qtbase/+/429680> and <https://codereview.qt-project.org/c/qt%2Ftqtc-qtbase/+/430922> or <https://download.qt.io/official_releases/qt/5.15/CVE-2022-37434-qtbase-5.15.patch>
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.003 Low
EPSS
Percentile
71.2%