CVE-2018-1061
published 2018-06-19CVE-2018-1061: python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker…
PriorityP339high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
5.16%
91.5th percentile
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | python2.7 | < python2.7 2.7.14-7 (bullseye) | python2.7 2.7.14-7 (bullseye) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| python | python | < 2.7.15 | 2.7.15 |
| python | python | — | — |
| python | python | >= 3.0 < 3.4.9 | 3.4.9 |
| python | python | 3.5.0 – 3.5.5 | — |
| python | python | 3.6 – 3.6.4 | — |
| redhat | ansible_tower | — | — |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_workstation | — | — |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.6HIGH
vendor_ubuntu7.6HIGH
vendor_debian6.5LOW
vendor_redhat6.5MEDIUM
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OSV
python3.5, python3.6, python3.7, python3.8, python3.9, python3.10, python3.11, python3.12 vulnerabilities
osv·2024-07-11·CVSS 7.6
CVE-2015-20107 [HIGH] python3.5, python3.6, python3.7, python3.8, python3.9, python3.10, python3.11, python3.12 vulnerabilities
python3.5, python3.6, python3.7, python3.8, python3.9, python3.10, python3.11, python3.12 vulnerabilities
It was discovered that Python incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 14.04 LTS and Ubuntu 18.04 LTS.
(CVE-2015-20107)
It was discovered that Python incorrectly used regular expressions
vulnerable to catastrophic backtracking. A remote attacker could possibly
use this issue to cause a denial of service. This issue only affected
Ubuntu 14.04 LTS. (CVE-2018-1060, CVE-2018-1061)
It was discovered that Python failed to initialize Expat’s hash salt. A
remote attacker could possibly use this issue to cause hash collisions,
leading to a denial of service. This issue only affected Ubuntu 14.04 L
GHSA
GHSA-gf62-w85x-fjpv: python before versions 2
ghsa_unreviewed·2022-05-13
CVE-2018-1061 [HIGH] GHSA-gf62-w85x-fjpv: python before versions 2
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
OSV
python2.7, python3.4, python3.5 vulnerabilities
osv·2018-11-13·CVSS 3.6
CVE-2018-1000030 [LOW] python2.7, python3.4, python3.5 vulnerabilities
python2.7, python3.4, python3.5 vulnerabilities
It was discovered that Python incorrectly handled large amounts of data. A
remote attacker could use this issue to cause Python to crash, resulting in
a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2018-1000030)
It was discovered that Python incorrectly handled running external commands
in the shutil module. A remote attacker could use this issue to cause
Python to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-1000802)
It was discovered that Python incorrectly used regular expressions
vulnerable to catastrophic backtracking. A remote attacker could possibly
use this issue to cause a denial of service. This issue only affe
OSV
CVE-2018-1061: python before versions 2
osv·2018-06-19·CVSS 7.5
CVE-2018-1061 [HIGH] CVE-2018-1061: python before versions 2
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
Ubuntu
Python vulnerabilities
vendor_ubuntu·2024-07-11·CVSS 7.6
CVE-2021-29921 [HIGH] Python vulnerabilities
Title: Python vulnerabilities
Summary: Several security issues were fixed in Python.
It was discovered that Python incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 14.04 LTS and Ubuntu 18.04 LTS.
(CVE-2015-20107)
It was discovered that Python incorrectly used regular expressions
vulnerable to catastrophic backtracking. A remote attacker could possibly
use this issue to cause a denial of service. This issue only affected
Ubuntu 14.04 LTS. (CVE-2018-1060, CVE-2018-1061)
It was discovered that Python failed to initialize Expat’s hash salt. A
remote attacker could possibly use this issue to cause hash collisions,
leading to a denial of service. This issue only affected Ubuntu 14.04 LTS.
(CVE-2018-14647)
Ubuntu
Python vulnerabilities
vendor_ubuntu·2018-11-15·CVSS 3.6
CVE-2018-1000030 [LOW] Python vulnerabilities
Title: Python vulnerabilities
Summary: Several security issues were fixed in Python.
USN-3817-1 fixed a vulnerability in Python. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Python incorrectly handled large amounts of data. A
remote attacker could use this issue to cause Python to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2018-1000030)
It was discovered that Python incorrectly handled running external commands
in the shutil module. A remote attacker could use this issue to cause
Python to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-1000802)
It was discovered that Python incorrectly used regular expressions
vulnerable to catastroph
Ubuntu
Python vulnerabilities
vendor_ubuntu·2018-11-13·CVSS 3.6
CVE-2018-1000030 [LOW] Python vulnerabilities
Title: Python vulnerabilities
Summary: Several security issues were fixed in Python.
It was discovered that Python incorrectly handled large amounts of data. A
remote attacker could use this issue to cause Python to crash, resulting in
a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2018-1000030)
It was discovered that Python incorrectly handled running external commands
in the shutil module. A remote attacker could use this issue to cause
Python to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-1000802)
It was discovered that Python incorrectly used regular expressions
vulnerable to catastrophic backtracking. A remote attacker could possibly
use this issue to cause a d
Red Hat
python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
vendor_redhat·2018-03-14·CVSS 6.5
CVE-2018-1061 [MEDIUM] CWE-20 python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
A flaw was found in the way catastrophic backtracking was implemented in python's difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
Package: python (Red Hat Enterprise Linux 5) - Will not fix
Package: python (Red Hat Enterprise Linux 6) - Will not fix
Package: rh-python34-python (Red Hat Software Collections) - Will not fix
Package: rh-python35-python (Red Hat Software Collections) - Will not fix
Debian
CVE-2018-1061: python2.7 - python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable...
vendor_debian·2018·CVSS 6.5
CVE-2018-1061 [MEDIUM] CVE-2018-1061: python2.7 - python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable...
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.
Scope: local
bullseye: resolved (fixed in 2.7.14-7)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-1060 CVE-2018-1061 python34: various flaws [fedora-all]
bugzilla·2018-04-04·CVSS 7.5
CVE-2018-1060 [HIGH] CVE-2018-1060 CVE-2018-1061 python34: various flaws [fedora-all]
CVE-2018-1060 CVE-2018-1061 python34: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. W
Bugzilla
CVE-2018-1060 CVE-2018-1061 python26: various flaws [fedora-all]
bugzilla·2018-04-04·CVSS 7.5
CVE-2018-1060 [HIGH] CVE-2018-1060 CVE-2018-1061 python26: various flaws [fedora-all]
CVE-2018-1060 CVE-2018-1061 python26: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. W
Bugzilla
CVE-2018-1060 CVE-2018-1061 python33: various flaws [fedora-all]
bugzilla·2018-04-04·CVSS 7.5
CVE-2018-1060 [HIGH] CVE-2018-1060 CVE-2018-1061 python33: various flaws [fedora-all]
CVE-2018-1060 CVE-2018-1061 python33: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. W
Bugzilla
CVE-2018-1060 CVE-2018-1061 python3: various flaws [fedora-all]
bugzilla·2018-04-04·CVSS 7.5
CVE-2018-1060 [HIGH] CVE-2018-1060 CVE-2018-1061 python3: various flaws [fedora-all]
CVE-2018-1060 CVE-2018-1061 python3: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. Wh
Bugzilla
CVE-2018-1060 CVE-2018-1061 python35: various flaws [fedora-all]
bugzilla·2018-04-04·CVSS 7.5
CVE-2018-1060 [HIGH] CVE-2018-1060 CVE-2018-1061 python35: various flaws [fedora-all]
CVE-2018-1060 CVE-2018-1061 python35: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. W
Bugzilla
CVE-2018-1061 python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
bugzilla·2018-02-26·CVSS 6.5
CVE-2018-1061 [MEDIUM] CVE-2018-1061 python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
CVE-2018-1061 python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
Catastrophic backtracking vulnerability was found in Python. Exploitation of a regular expression in difflib.IS_LINE_JUNK method in servers that use difflib can lead to denial of service.
Upstream issue:
https://bugs.python.org/issue32981
Discussion:
Created python3 tracking bugs for this issue:
Affects: fedora-all [bug 1563462]
Created python26 tracking bugs for this issue:
Affects: fedora-all [bug 1563464]
Created python33 tracking bugs for this issue:
Affects: fedora-all [bug 1563465]
Created python34 tracking bugs for this issue:
Affects: fedora-all [bug 1563463]
Created python35 tracking bugs for this issue:
Affects: fedora-all [bug 1563461]
---
External Referenc
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlhttp://www.securitytracker.com/id/1042001https://access.redhat.com/errata/RHBA-2019:0327https://access.redhat.com/errata/RHSA-2018:3041https://access.redhat.com/errata/RHSA-2018:3505https://access.redhat.com/errata/RHSA-2019:1260https://access.redhat.com/errata/RHSA-2019:3725https://bugs.python.org/issue32981https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1061https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-6-release-candidate-1https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-release-candidate-1https://lists.debian.org/debian-lts-announce/2018/09/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2018/09/msg00031.htmlhttps://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://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03951en_ushttps://usn.ubuntu.com/3817-1/https://usn.ubuntu.com/3817-2/https://www.debian.org/security/2018/dsa-4306https://www.debian.org/security/2018/dsa-4307http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlhttp://www.securitytracker.com/id/1042001https://access.redhat.com/errata/RHBA-2019:0327https://access.redhat.com/errata/RHSA-2018:3041https://access.redhat.com/errata/RHSA-2018:3505https://access.redhat.com/errata/RHSA-2019:1260https://access.redhat.com/errata/RHSA-2019:3725https://bugs.python.org/issue32981https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1061https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-6-release-candidate-1https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-release-candidate-1https://lists.debian.org/debian-lts-announce/2018/09/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2018/09/msg00031.htmlhttps://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://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03951en_ushttps://usn.ubuntu.com/3817-1/https://usn.ubuntu.com/3817-2/https://www.debian.org/security/2018/dsa-4306https://www.debian.org/security/2018/dsa-4307
2018-06-19
Published