pycrypto: Heap-buffer overflow in ALGobject structure
Published Feb 15, 2017
9.3
CRITICALCVSS 4.0
EPSS 9.58%
Description
Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.
Affected products
No data.
Configuration 2
- 24
- 25
No data.
Red Hat Ceph Storage 1.3
python-crypto
Will not fix
Red Hat Ceph Storage 2
python-crypto
Will not fix
Red Hat Enterprise Linux 6
python-crypto
Not affected
Red Hat Enterprise Linux 7
python-crypto
Not affected
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
python-crypto
Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
python-crypto
Will not fix
Red Hat Enterprise Virtualization 3
python-crypto
Not affected
Red Hat OpenShift Enterprise 3
python-crypto
Will not fix
Red Hat OpenStack Platform 10 (Newton)
python-crypto
Will not fix
Red Hat OpenStack Platform 11 (Ocata)
python-crypto
Will not fix
Red Hat OpenStack Platform 12 (Pike)
python-crypto
Not affected
Red Hat OpenStack Platform 8 (Liberty)
python-crypto
Will not fix
Red Hat OpenStack Platform 9 (Mitaka)
python-crypto
Will not fix
Red Hat Quickstart Cloud Installer 1
python-crypto
Not affected
Red Hat Storage 3
python-crypto
Will not fix
Red Hat Storage Console 2
python-crypto
Will not fix
Red Hat Virtualization 4
python-crypto
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Ceph Storage 1.3 | python-crypto | Will not fix | n/a |
| Red Hat Ceph Storage 2 | python-crypto | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | python-crypto | Not affected | n/a |
| Red Hat Enterprise Linux 7 | python-crypto | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | python-crypto | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | python-crypto | Will not fix | n/a |
| Red Hat Enterprise Virtualization 3 | python-crypto | Not affected | n/a |
| Red Hat OpenShift Enterprise 3 | python-crypto | Will not fix | n/a |
| Red Hat OpenStack Platform 10 (Newton) | python-crypto | Will not fix | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | python-crypto | Will not fix | n/a |
| Red Hat OpenStack Platform 12 (Pike) | python-crypto | Not affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | python-crypto | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | python-crypto | Will not fix | n/a |
| Red Hat Quickstart Cloud Installer 1 | python-crypto | Not affected | n/a |
| Red Hat Storage 3 | python-crypto | Will not fix | n/a |
| Red Hat Storage Console 2 | python-crypto | Will not fix | n/a |
| Red Hat Virtualization 4 | python-crypto | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 9.58% (0.09578) | 95.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.50% (0.09501) | 94.80th | v5 (v2026.06.15) |
| Jan 26, 2026 | 14.53% (0.14532) | 94.26th | v4 (v2025.03.14) |
| Jan 18, 2026 | 15.58% (0.15585) | 94.47th | v4 (v2025.03.14) |
| Dec 13, 2025 | 14.53% (0.14532) | 94.20th | v4 (v2025.03.14) |
| Oct 19, 2025 | 10.35% (0.10350) | 92.84th | v4 (v2025.03.14) |
| Aug 3, 2025 | 13.43% (0.13429) | 93.94th | v4 (v2025.03.14) |
| Apr 15, 2025 | 17.44% (0.17444) | 94.64th | v4 (v2025.03.14) |
| Mar 30, 2025 | 20.12% (0.20124) | 95.02th | v4 (v2025.03.14) |
| Mar 29, 2025 | 25.82% (0.25817) | 93.96th | v4 (v2025.03.14) |
| Mar 17, 2025 | 20.12% (0.20124) | 95.02th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.43% (0.01428) | 87.09th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.43% (0.01428) | 85.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.01% (0.01011) | 81.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.05% (0.10052) | 94.55th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.05% (0.10052) | 94.06th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.05% (0.10052) | 87.55th | v2 (v2022.01.01) |
References (16)
- http://www.openwall.com/lists/oss-security/2016/12/27/8 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95122 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2013-7459 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1409754 x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-cq27-v7xp-c356 Advisory
- https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4 x_refsource_CONFIRMPatch
- https://github.com/dlitz/pycrypto/issues/176 x_refsource_CONFIRMPatchVendor Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/pycrypto/PYSEC-2017-94.yaml
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE
- https://nvd.nist.gov/vuln/detail/CVE-2013-7459
- https://pony7.fr/ctf:public:32c3:cryptmsg x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
- https://security.gentoo.org/glsa/201702-14 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2013-7459
Change history (0)
No recorded changes yet.