The base64DecodeInternal function in wtf/text/Base64.cpp in Blink, as used in Google Chrome before 34.0.1847.116, does not properly handle string data composed exclusively of whitespace characters, which allows remote attackers to cause a denial of service (out-of-bounds read) via a window.atob method call
Published Apr 9, 2014
5.0
MEDIUMCVSS 2.0
EPSS 1.38%
Description
The base64DecodeInternal function in wtf/text/Base64.cpp in Blink, as used in Google Chrome before 34.0.1847.116, does not properly handle string data composed exclusively of whitespace characters, which allows remote attackers to cause a denial of service (out-of-bounds read) via a window.atob method call.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.38% (0.01380) | 71.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.37% (0.01368) | 68.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.65% (0.01645) | 80.71th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.36% (0.01363) | 86.80th | v3 (v2023.03.01) |
| Nov 20, 2023 | 1.36% (0.01363) | 84.75th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.54% (0.01543) | 85.63th | v3 (v2023.03.01) |
| Oct 4, 2023 | 1.77% (0.01767) | 86.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.75% (0.01755) | 86.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (6)
- http://googlechromereleases.blogspot.com/2014/04/stable-channel-update.html x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00012.html vendor-advisoryx_refsource_SUSE
- http://security.gentoo.org/glsa/glsa-201408-16.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2014/dsa-2905 vendor-advisoryx_refsource_DEBIAN
- https://code.google.com/p/chromium/issues/detail?id=357332 x_refsource_CONFIRM
- https://src.chromium.org/viewvc/blink?revision=170264&view=revision x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://googlechromereleases.blogspot.com/2014/04/stable-channel-update.html | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-updates/2014-05/msg00012.html | vendor-advisoryx_refsource_SUSE | |
| http://security.gentoo.org/glsa/glsa-201408-16.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.debian.org/security/2014/dsa-2905 | vendor-advisoryx_refsource_DEBIAN | |
| https://code.google.com/p/chromium/issues/detail?id=357332 | x_refsource_CONFIRM | |
| https://src.chromium.org/viewvc/blink?revision=170264&view=revision | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.