critical
CVE-2013-7459
pycrypto: Heap-buffer overflow in ALGobject structure
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Red Hat9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, GHSA. Rated lower by Red Hat (high), Amazon (high), Photon OS (high), Ubuntu (medium).
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 packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| pip::GitHub Security Advisory pip | pycrypto | no fix listed |
| amazon linux 1 | python-crypto-debuginfo, python26-crypto, python27-crypto | 2.6.1-1.14.amzn1 |
| debian 7 | python-crypto | 2.6-4+deb7u4 |
| debian 8 | python-crypto | 2.6.1-5+deb8u1 |
| Photon OS 1.0 | pycrypto | 2.6.1-2.ph1 |
| Photon OS 2.0 | pycrypto | 2.6.1-3.ph2 |
| Red Hat | python-crypto, python2-crypto | no fix listed |
| ubuntu 14.04 | python-crypto | 2.6.1-4ubuntu0.1 |
| ubuntu 14.04-ESM | python-crypto | 2.6.1-4ubuntu0.1 |
| ubuntu 16.04 | python-crypto | 2.6.1-6ubuntu0.16.04.1 |
| ubuntu 16.04-ESM | python-crypto | 2.6.1-6ubuntu0.16.04.1 |
| ubuntu 16.10 | python-crypto | 2.6.1-6ubuntu0.16.10.2 |
Show all 15 entries from 12 sources
| Source | Package | Fixed in |
|---|---|---|
| pip::GitHub Security Advisory pip | pycrypto | no fix listed |
| amazon linux 1 | python-crypto-debuginfo | 2.6.1-1.14.amzn1 |
| amazon linux 1 | python26-crypto | 2.6.1-1.14.amzn1 |
| amazon linux 1 | python27-crypto | 2.6.1-1.14.amzn1 |
| debian 7 | python-crypto | 2.6-4+deb7u4 |
| debian 8 | python-crypto | 2.6.1-5+deb8u1 |
| Photon OS 1.0 | pycrypto | 2.6.1-2.ph1 |
| Photon OS 2.0 | pycrypto | 2.6.1-3.ph2 |
| Red Hat | python-crypto | no fix listed |
| Red Hat | python2-crypto | no fix listed |
| ubuntu 14.04 | python-crypto | 2.6.1-4ubuntu0.1 |
| ubuntu 14.04-ESM | python-crypto | 2.6.1-4ubuntu0.1 |
| ubuntu 16.04 | python-crypto | 2.6.1-6ubuntu0.16.04.1 |
| ubuntu 16.04-ESM | python-crypto | 2.6.1-6ubuntu0.16.04.1 |
| ubuntu 16.10 | python-crypto | 2.6.1-6ubuntu0.16.10.2 |
References
- http://www.openwall.com/lists/oss-security/2016/12/27/8
- http://www.securityfocus.com/bid/95122
- https://access.redhat.com/security/cve/CVE-2013-7459
- https://bugzilla.redhat.com/show_bug.cgi?id=1409754
- https://github.com/advisories/GHSA-cq27-v7xp-c356
- https://github.com/dlitz/pycrypto
- https://github.com/dlitz/pycrypto/commit/8dbe0dc3eea5c689d4f76b37b93fe216cf1f00d4
- https://github.com/dlitz/pycrypto/issues/176
All 20 references
- https://github.com/pypa/advisory-database/tree/main/vulns/pycrypto/PYSEC-2017-94.yaml
- 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/C6BWNADPLKDBBQBUT3P75W7HAJCE7M3B/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJ37R2YLX56YZABFNAOWV4VTHTGYREAE
- 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
- https://security.gentoo.org/glsa/201702-14
- https://ubuntu.com/security/notices/USN-3199-1
- https://ubuntu.com/security/notices/USN-3199-2
- https://ubuntu.com/security/notices/USN-3199-3
- https://www.cve.org/CVERecord?id=CVE-2013-7459