CVE-2018-1060: Input Validation
First published: Mon Feb 26 2018(Updated: )
Catastrophic backtracking vulnerability was found in Python. Exploitation of a regular expression in pop3lib's apop() method although limited by 2048 chars, can lead to denial of service. Upstream issue: <a href="https://bugs.python.org/issue32981">https://bugs.python.org/issue32981</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/python | <2.7.15 | 2.7.15 |
| redhat/python | <3.4.9 | 3.4.9 |
| redhat/python | <3.5.6 | 3.5.6 |
| redhat/python | <3.6.5 | 3.6.5 |
| redhat/python | <3.7.0 | 3.7.0 |
| debian/python2.7 | 2.7.18-8+deb11u1 | |
| Python Programming Language | >=2.7.0<2.7.15 | |
| Python Programming Language | >=3.0.0<3.4.9 | |
| Python Programming Language | >=3.5.0<3.5.6 | |
| Python Programming Language | >3.6.0<3.6.5 | |
| Fedoraproject Fedora | =28 | |
| Fedoraproject Fedora | =29 | |
| Fedoraproject Fedora | =30 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| redhat ansible tower | =3.3 | |
| redhat enterprise Linux desktop | =7.0 | |
| redhat enterprise Linux server | =7.0 | |
| redhat enterprise Linux workstation | =7.0 | |
| Debian GNU/Linux | =8.0 | |
| Debian GNU/Linux | =9.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- http://www.securitytracker.com/id/1042001
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2018:3041
- https://access.redhat.com/errata/RHSA-2018:3505
- https://access.redhat.com/errata/RHSA-2019:1260
- https://access.redhat.com/errata/RHSA-2019:3725
- https://bugs.python.org/issue32981
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1060
- https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-6-release-candidate-1
- https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-release-candidate-1
- https://lists.debian.org/debian-lts-announce/2018/09/msg00030.html
- https://lists.debian.org/debian-lts-announce/2018/09/msg00031.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03951en_us
- https://usn.ubuntu.com/3817-1/
- https://usn.ubuntu.com/3817-2/
- https://www.debian.org/security/2018/dsa-4306
- https://www.debian.org/security/2018/dsa-4307
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03951en_us
- https://launchpad.net/bugs/cve/CVE-2018-1060
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/
- https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-final
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1563465
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1563461
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1563463
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1563464
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1563462
- https://access.redhat.com/errata/RHSA-2020:1268
- https://access.redhat.com/errata/RHSA-2020:1346
- https://bugzilla.redhat.com/show_bug.cgi?id=1549191
- https://github.com/python/cpython/commit/0e6c8ee2358a2e23117501826c008842acb835ac
- https://github.com/python/cpython/commit/0902a2d6b2d1d9dbde36aeaaccf1788ceaa97143
- https://github.com/python/cpython/commit/c9516754067d71fd7429a25ccfcb2141fc583523
- https://github.com/python/cpython/commit/937ac1fe069a4dc8471dff205f553d82e724015b
- https://github.com/python/cpython/commit/942cc04ae44825ea120e3a19a80c9b348b8194d0
- https://github.com/python/cpython/commit/e052d40cea15f582b50947f7d906b39744dc62a2
- https://security-tracker.debian.org/tracker/CVE-2018-1060
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1060
- https://nvd.nist.gov/vuln/detail/CVE-2018-1060
- https://ubuntu.com/security/CVE-2018-1060
Frequently Asked Questions
What is the severity of CVE-2018-1060?
CVE-2018-1060 is classified as a denial of service vulnerability due to catastrophic backtracking in regular expressions.
How do I fix CVE-2018-1060?
To address CVE-2018-1060, upgrade your Python version to 2.7.18 or later, or 3.4.10 or later, depending on your distribution.
Which Python versions are affected by CVE-2018-1060?
CVE-2018-1060 affects Python versions 2.7.0 to 2.7.15 and versions 3.0.0 to 3.6.5.
Can CVE-2018-1060 be exploited remotely?
Exploitation of CVE-2018-1060 may lead to denial of service but is limited by a maximum input size of 2048 characters.
Is there a workaround for CVE-2018-1060?
A temporary workaround for CVE-2018-1060 involves avoiding the use of the vulnerable regular expressions in the pop3lib's apop() method.
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