The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors
Published Aug 14, 2012
6.4
MEDIUMCVSS 2.0
EPSS 4.55%
Description
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
Affected products
No data.
Configuration 1
Configuration 2
- 10.04
- 11.04
- 11.10
- 12.04
- 12.10
Configuration 3
- 6.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
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:P/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.55% (0.04549) | 91.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.55% (0.04549) | 90.33th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.67% (0.01667) | 80.41th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.62% (0.03620) | 79.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.67% (0.01667) | 80.84th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.28% (0.03278) | 91.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.28% (0.03278) | 89.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670389 x_refsource_MISCThird Party Advisory
- http://bugs.python.org/issue14579 x_refsource_MISCVendor Advisory
- http://secunia.com/advisories/51087 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51089 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.openwall.com/lists/oss-security/2012/04/25/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2012/04/25/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.ubuntu.com/usn/USN-1615-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-1616-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670389 | x_refsource_MISCThird Party Advisory | |
| http://bugs.python.org/issue14579 | x_refsource_MISCVendor Advisory | |
| http://secunia.com/advisories/51087 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51089 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2012/04/25/2 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2012/04/25/4 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.ubuntu.com/usn/USN-1615-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| http://www.ubuntu.com/usn/USN-1616-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory |
Change history (0)
No recorded changes yet.