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githubGitHub Advisory DatabaseGHSA-PQ64-V7F5-GQH8
HistoryMar 29, 2021 - 4:33 p.m.

Pygments vulnerable to Regular Expression Denial of Service (ReDoS)

2021-03-2916:33:03
CWE-400
GitHub Advisory Database
github.com
29

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

In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.

CPENameOperatorVersion
pygmentsge1.1
pygmentslt2.7.4

Related

nessus 37
ubuntucve 1
debian 5
osv 15
mageia 2
cbl_mariner 2
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ubuntu 2
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Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
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pygments vulnerability
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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 GHSA-PQ64-V7F5-GQH8
nessus37ubuntucve1debian5osv15mageia2cbl_mariner2suse3cve1ubuntu2debiancve1prion1fedora2amazon2veracode1alpinelinux1redhatcve1oraclelinux3rocky3almalinux3freebsd1redhat5photon4altlinux1kitploit1ibm2