CVE-2008-2420

Severity

68%

Complexity

86%

Confidentiality

106%

The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.

The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.

CVSS 2.0 Base Score 6.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P).

Overview

Type

Stunnel

First reported 16 years ago

2008-05-23 15:32:00

Last updated 7 years ago

2017-08-08 01:31:00

Affected Software

Stunnel 3.4a

3.4a

Stunnel 3.5

3.5

Stunnel 3.6

3.6

Stunnel 3.7

3.7

Stunnel 3.8

3.8

Stunnel 3.9

3.9

Stunnel 3.10

3.10

Stunnel 3.11

3.11

Stunnel 3.12

3.12

Stunnel 3.13

3.13

Stunnel 3.14

3.14

Stunnel 3.15

3.15

Stunnel 3.16

3.16

Stunnel 3.17

3.17

Stunnel 3.18

3.18

Stunnel 3.19

3.19

Stunnel 3.20

3.20

Stunnel 3.21

3.21

Stunnel 3.21a

3.21a

Stunnel 3.21b

3.21b

Stunnel 3.21c

3.21c

Stunnel 3.22

3.22

Stunnel 3.23

3.23

Stunnel 3.24

3.24

Stunnel 3.25

3.25

Stunnel 3.26

3.26

Stunnel 4.01

4.01

Stunnel 4.02

4.02

Stunnel 4.03

4.03

Stunnel 4.04

4.04

Stunnel 4.05

4.05

Stunnel 4.06

4.06

Stunnel 4.07

4.07

Stunnel 4.08

4.08

Stunnel 4.09

4.09

Stunnel 4.10

4.10

Stunnel 4.11

4.11

Stunnel 4.12

4.12

Stunnel 4.13

4.13

Stunnel 4.14

4.14

Stunnel 4.15

4.15

Stunnel 4.16

4.16

Stunnel 4.17

4.17

Stunnel 4.18

4.18

Stunnel 4.19

4.19

Stunnel 4.20

4.20

Stunnel 4.21

4.21

Stunnel 4.22

4.22

Stunnel 4.23

4.23

References

30335

Vendor Advisory

30425

31438

GLSA-200808-08

[stunnel-announce] 20080519 stunnel 4.24 released

MDVSA-2008:168

29309

Patch

ADV-2008-1569

stunnel-ocsp-security-bypass(42528)

FEDORA-2008-4531

FEDORA-2008-4579

FEDORA-2008-4606

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