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ubuntucveUbuntu.comUB:CVE-2021-27291
HistoryMar 17, 2021 - 12:00 a.m.

CVE-2021-27291

2021-03-1700:00:00
ubuntu.com
ubuntu.com
10

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.

Bugs

Notes

Author Note
avital eric looks to contain a vendored copy of pygments
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarcheric< anyUNKNOWN
ubuntu20.04noarcheric< anyUNKNOWN
ubuntu22.04noarcheric< anyUNKNOWN
ubuntu23.10noarcheric< anyUNKNOWN
ubuntu16.04noarcheric< anyUNKNOWN
ubuntu18.04noarchpygments< 2.2.0+dfsg-1ubuntu0.2UNKNOWN
ubuntu20.04noarchpygments< 2.3.1+dfsg-1ubuntu2.2UNKNOWN
ubuntu20.10noarchpygments< 2.3.1+dfsg-4ubuntu0.2UNKNOWN
ubuntu21.04noarchpygments< 2.7.1+dfsg-2ubuntu1UNKNOWN
ubuntu21.10noarchpygments< 2.7.1+dfsg-2ubuntu1UNKNOWN
Rows per page:
1-10 of 161

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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 UB:CVE-2021-27291
prion1nessus37osv15openvas23suse3cve1debiancve1ubuntu2fedora2amazon2cbl_mariner2github1mageia2debian5veracode1alpinelinux1redhatcve1oraclelinux3almalinux3freebsd1rocky3redhat5photon4altlinux1kitploit1ibm2