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redhatcveRedhat.comRH:CVE-2021-27291
HistoryMar 18, 2021 - 6:25 p.m.

CVE-2021-27291

2021-03-1818:25:25
redhat.com
access.redhat.com
14

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.01 Low

EPSS

Percentile

83.1%

JSON

A denial of service attack was discovered against pygments. Some of the regular expressions used to tokenise source code for highlighting have exponential complexity. A specially crafted input file could cause pygments to take effectively infinite time to parse, consuming CPU resources and denying access to the service.

Related

suse 3
nessus 37
osv 15
cve 1
debiancve 1
ubuntu 2
openvas 23
prion 1
mageia 2
debian 5
cbl_mariner 2
ubuntucve 1
veracode 1
alpinelinux 1
fedora 2
github 1
amazon 2
oraclelinux 3
freebsd 1
rocky 3
almalinux 3
redhat 5
photon 4
altlinux 1
kitploit 1
ibm 2
suse
suse
Security update for python-Pygments (important)
2021-12-03 00:00:00
Security update for python-Pygments (important)
2021-12-01 00:00:00
Security update for python-Pygments (important)
2021-12-01 00:00:00
nessus
nessus
Amazon Linux 2 : python3-pygments (ALAS-2023-2117)
2023-07-20 00:00:00
SUSE SLES15 Security Update : python-Pygments (SUSE-SU-2021:3841-1)
2021-12-02 00:00:00
SUSE SLED15 / SLES15 Security Update : python-Pygments (SUSE-SU-2021:3840-1)
2021-12-02 00:00:00
osv
osv
pygments vulnerability
2021-03-30 16:33:13
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
2021-03-29 16:33:03
PYSEC-2021-141
2021-03-17 13:15:00
cve
cve
CVE-2021-27291
2021-03-17 13:15:00
debiancve
debiancve
CVE-2021-27291
2021-03-17 13:15:00
ubuntu
ubuntu
Pygments vulnerability
2021-03-30 00:00:00
Pygments vulnerabilities
2023-08-14 00:00:00
openvas
openvas
Debian: Security Advisory (DSA-4878-1)
2021-03-30 00:00:00
Debian: Security Advisory (DLA-2600-1)
2021-03-20 00:00:00
Fedora: Security Advisory for python-pygments (FEDORA-2021-3f975f68c8)
2021-05-06 00:00:00
prion
prion
Denial of service
2021-03-17 13:15:00
mageia
mageia
Updated python-pygments packages fix a security vulnerability
2021-06-14 00:32:39
Updated mediawiki packages fix security vulnerabilities
2021-05-23 04:30:51
debian
debian
[SECURITY] [DLA 2600-1] pygments security update
2021-03-19 17:21:51
[SECURITY] [DSA 4878-1] pygments security update
2021-03-27 13:58:51
[SECURITY] [DLA 2648-1] mediawiki security update
2021-05-05 05:43:33
cbl_mariner
cbl_mariner
CVE-2021-27291 affecting package python-pygments 2.4.2-6
2021-04-06 23:50:13
CVE-2021-27291 affecting package python-pygments 2.4.2-7
2022-04-09 06:51:44
ubuntucve
ubuntucve
CVE-2021-27291
2021-03-17 00:00:00
veracode
veracode
Regular Expression Denial Of Service (ReDoS)
2021-03-18 05:32:25
alpinelinux
alpinelinux
CVE-2021-27291
2021-03-17 13:15:00
fedora
fedora
[SECURITY] Fedora 33 Update: python-pygments-2.6.1-6.fc33
2021-05-06 00:53:56
[SECURITY] Fedora 32 Update: python-pygments-2.4.2-9.fc32
2021-05-06 00:58:53
github
github
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
2021-03-29 16:33:03
amazon
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Medium: python-pygments
2023-08-03 18:10:00
Medium: python3-pygments
2023-07-05 22:01:00
oraclelinux
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2021-11-19 00:00:00
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2021-11-16 00:00:00
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2021-11-16 00:00:00
freebsd
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2021-03-17 00:00:00
rocky
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resource-agents security, bug fix, and enhancement update
2021-11-09 08:20:04
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2021-11-09 08:24:37
python27:2.7 security update
2021-11-09 08:24:39
almalinux
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Moderate: resource-agents security, bug fix, and enhancement update
2021-11-09 08:20:04
Moderate: python36:3.6 security and bug fix update
2021-11-09 08:24:37
Moderate: python27:2.7 security update
2021-11-09 08:24:39
redhat
redhat
(RHSA-2021:4150) Moderate: python36:3.6 security and bug fix update
2021-11-09 08:24:37
(RHSA-2021:4139) Moderate: resource-agents security, bug fix, and enhancement update
2021-11-09 08:20:04
(RHSA-2021:0781) Moderate: Red Hat Ansible Automation Platform 1.2.2 security and bug fix update
2021-03-09 15:08:01
photon
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Critical Photon OS Security Update - PHSA-2021-0253
2021-06-15 00:00:00
Critical Photon OS Security Update - PHSA-2021-3.0-0253
2021-06-16 00:00:00
Critical Photon OS Security Update - PHSA-2021-0047
2021-06-16 00:00:00
altlinux
altlinux
Security fix for the ALT Linux 9 package mediawiki version 1.35.2-alt1
2021-04-24 00:00:00
kitploit
kitploit
Regexploit - Find Regular Expressions Which Are Vulnerable To ReDoS (Regular Expression Denial Of Service)
2021-07-20 12:30:00
ibm
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Security Bulletin: IBM Cloud Pak for Security includes components with multiple known vulnerabilities
2023-01-19 13:54:16
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2023-03-08 18:05:21

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.01 Low

EPSS

Percentile

83.1%

JSON
Related for RH:CVE-2021-27291
suse3nessus37osv15cve1debiancve1ubuntu2openvas23prion1mageia2debian5cbl_mariner2ubuntucve1veracode1alpinelinux1fedora2github1amazon2oraclelinux3freebsd1rocky3almalinux3redhat5photon4altlinux1kitploit1ibm2