CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2017-9798

Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.94

EPSS Ranking 99.9%

CVSS Severity

CVSS v3 Score 7.5

CVSS v2 Score 5.0

References

Products affected by CVE-2017-9798

Apache » Http Server » Version: N/A

cpe:2.3:a:apache:http_server:-
Apache » Http Server » Version: 0.8.11

cpe:2.3:a:apache:http_server:0.8.11
Apache » Http Server » Version: 0.8.14

cpe:2.3:a:apache:http_server:0.8.14
Apache » Http Server » Version: 1.0

cpe:2.3:a:apache:http_server:1.0
Apache » Http Server » Version: 1.0.2

cpe:2.3:a:apache:http_server:1.0.2
Apache » Http Server » Version: 1.0.3

cpe:2.3:a:apache:http_server:1.0.3
Apache » Http Server » Version: 1.0.5

cpe:2.3:a:apache:http_server:1.0.5
Apache » Http Server » Version: 1.1

cpe:2.3:a:apache:http_server:1.1
Apache » Http Server » Version: 1.1.1

cpe:2.3:a:apache:http_server:1.1.1
Apache » Http Server » Version: 1.15.17

cpe:2.3:a:apache:http_server:1.15.17
Apache » Http Server » Version: 1.2

cpe:2.3:a:apache:http_server:1.2
Apache » Http Server » Version: 1.2.0

cpe:2.3:a:apache:http_server:1.2.0
Apache » Http Server » Version: 1.2.1

cpe:2.3:a:apache:http_server:1.2.1
Apache » Http Server » Version: 1.2.2

cpe:2.3:a:apache:http_server:1.2.2
Apache » Http Server » Version: 1.2.4

cpe:2.3:a:apache:http_server:1.2.4
Apache » Http Server » Version: 1.2.5

cpe:2.3:a:apache:http_server:1.2.5
Apache » Http Server » Version: 1.2.6

cpe:2.3:a:apache:http_server:1.2.6
Apache » Http Server » Version: 1.2.9

cpe:2.3:a:apache:http_server:1.2.9
Apache » Http Server » Version: 1.3

cpe:2.3:a:apache:http_server:1.3
Apache » Http Server » Version: 1.3.0

cpe:2.3:a:apache:http_server:1.3.0
Apache » Http Server » Version: 1.3.1

cpe:2.3:a:apache:http_server:1.3.1
Apache » Http Server » Version: 1.3.1.1

cpe:2.3:a:apache:http_server:1.3.1.1
Apache » Http Server » Version: 1.3.10

cpe:2.3:a:apache:http_server:1.3.10
Apache » Http Server » Version: 1.3.11

cpe:2.3:a:apache:http_server:1.3.11
Apache » Http Server » Version: 1.3.12

cpe:2.3:a:apache:http_server:1.3.12
Apache » Http Server » Version: 1.3.13

cpe:2.3:a:apache:http_server:1.3.13
Apache » Http Server » Version: 1.3.14

cpe:2.3:a:apache:http_server:1.3.14
Apache » Http Server » Version: 1.3.15

cpe:2.3:a:apache:http_server:1.3.15
Apache » Http Server » Version: 1.3.16

cpe:2.3:a:apache:http_server:1.3.16
Apache » Http Server » Version: 1.3.17

cpe:2.3:a:apache:http_server:1.3.17
Apache » Http Server » Version: 1.3.18

cpe:2.3:a:apache:http_server:1.3.18
Apache » Http Server » Version: 1.3.19

cpe:2.3:a:apache:http_server:1.3.19
Apache » Http Server » Version: 1.3.2

cpe:2.3:a:apache:http_server:1.3.2
Apache » Http Server » Version: 1.3.20

cpe:2.3:a:apache:http_server:1.3.20
Apache » Http Server » Version: 1.3.22

cpe:2.3:a:apache:http_server:1.3.22
Apache » Http Server » Version: 1.3.23

cpe:2.3:a:apache:http_server:1.3.23
Apache » Http Server » Version: 1.3.24

cpe:2.3:a:apache:http_server:1.3.24
Apache » Http Server » Version: 1.3.25

cpe:2.3:a:apache:http_server:1.3.25
Apache » Http Server » Version: 1.3.26

cpe:2.3:a:apache:http_server:1.3.26
Apache » Http Server » Version: 1.3.27

cpe:2.3:a:apache:http_server:1.3.27
Apache » Http Server » Version: 1.3.28

cpe:2.3:a:apache:http_server:1.3.28
Apache » Http Server » Version: 1.3.29

cpe:2.3:a:apache:http_server:1.3.29
Apache » Http Server » Version: 1.3.3

cpe:2.3:a:apache:http_server:1.3.3
Apache » Http Server » Version: 1.3.30

cpe:2.3:a:apache:http_server:1.3.30
Apache » Http Server » Version: 1.3.31

cpe:2.3:a:apache:http_server:1.3.31
Apache » Http Server » Version: 1.3.32

cpe:2.3:a:apache:http_server:1.3.32
Apache » Http Server » Version: 1.3.33

cpe:2.3:a:apache:http_server:1.3.33
Apache » Http Server » Version: 1.3.34

cpe:2.3:a:apache:http_server:1.3.34
Apache » Http Server » Version: 1.3.35

cpe:2.3:a:apache:http_server:1.3.35
Apache » Http Server » Version: 1.3.36

cpe:2.3:a:apache:http_server:1.3.36
Apache » Http Server » Version: 1.3.37

cpe:2.3:a:apache:http_server:1.3.37
Apache » Http Server » Version: 1.3.38

cpe:2.3:a:apache:http_server:1.3.38
Apache » Http Server » Version: 1.3.39

cpe:2.3:a:apache:http_server:1.3.39
Apache » Http Server » Version: 1.3.4

cpe:2.3:a:apache:http_server:1.3.4
Apache » Http Server » Version: 1.3.41

cpe:2.3:a:apache:http_server:1.3.41
Apache » Http Server » Version: 1.3.42

cpe:2.3:a:apache:http_server:1.3.42
Apache » Http Server » Version: 1.3.5

cpe:2.3:a:apache:http_server:1.3.5
Apache » Http Server » Version: 1.3.6

cpe:2.3:a:apache:http_server:1.3.6
Apache » Http Server » Version: 1.3.65

cpe:2.3:a:apache:http_server:1.3.65
Apache » Http Server » Version: 1.3.68

cpe:2.3:a:apache:http_server:1.3.68
Apache » Http Server » Version: 1.3.7

cpe:2.3:a:apache:http_server:1.3.7
Apache » Http Server » Version: 1.3.8

cpe:2.3:a:apache:http_server:1.3.8
Apache » Http Server » Version: 1.3.9

cpe:2.3:a:apache:http_server:1.3.9
Apache » Http Server » Version: 1.4.0

cpe:2.3:a:apache:http_server:1.4.0
Apache » Http Server » Version: 1.99

cpe:2.3:a:apache:http_server:1.99
Apache » Http Server » Version: 2.0

cpe:2.3:a:apache:http_server:2.0
Apache » Http Server » Version: 2.0.0

cpe:2.3:a:apache:http_server:2.0.0
Apache » Http Server » Version: 2.0.1

cpe:2.3:a:apache:http_server:2.0.1
Apache » Http Server » Version: 2.0.10

cpe:2.3:a:apache:http_server:2.0.10
Apache » Http Server » Version: 2.0.11

cpe:2.3:a:apache:http_server:2.0.11
Apache » Http Server » Version: 2.0.12

cpe:2.3:a:apache:http_server:2.0.12
Apache » Http Server » Version: 2.0.13

cpe:2.3:a:apache:http_server:2.0.13
Apache » Http Server » Version: 2.0.14

cpe:2.3:a:apache:http_server:2.0.14
Apache » Http Server » Version: 2.0.15

cpe:2.3:a:apache:http_server:2.0.15
Apache » Http Server » Version: 2.0.16

cpe:2.3:a:apache:http_server:2.0.16
Apache » Http Server » Version: 2.0.17

cpe:2.3:a:apache:http_server:2.0.17
Apache » Http Server » Version: 2.0.18

cpe:2.3:a:apache:http_server:2.0.18
Apache » Http Server » Version: 2.0.19

cpe:2.3:a:apache:http_server:2.0.19
Apache » Http Server » Version: 2.0.2

cpe:2.3:a:apache:http_server:2.0.2
Apache » Http Server » Version: 2.0.20

cpe:2.3:a:apache:http_server:2.0.20
Apache » Http Server » Version: 2.0.21

cpe:2.3:a:apache:http_server:2.0.21
Apache » Http Server » Version: 2.0.22

cpe:2.3:a:apache:http_server:2.0.22
Apache » Http Server » Version: 2.0.23

cpe:2.3:a:apache:http_server:2.0.23
Apache » Http Server » Version: 2.0.24

cpe:2.3:a:apache:http_server:2.0.24
Apache » Http Server » Version: 2.0.25

cpe:2.3:a:apache:http_server:2.0.25
Apache » Http Server » Version: 2.0.26

cpe:2.3:a:apache:http_server:2.0.26
Apache » Http Server » Version: 2.0.27

cpe:2.3:a:apache:http_server:2.0.27
Apache » Http Server » Version: 2.0.28

cpe:2.3:a:apache:http_server:2.0.28
Apache » Http Server » Version: 2.0.29

cpe:2.3:a:apache:http_server:2.0.29
Apache » Http Server » Version: 2.0.3

cpe:2.3:a:apache:http_server:2.0.3
Apache » Http Server » Version: 2.0.30

cpe:2.3:a:apache:http_server:2.0.30
Apache » Http Server » Version: 2.0.31

cpe:2.3:a:apache:http_server:2.0.31
Apache » Http Server » Version: 2.0.32

cpe:2.3:a:apache:http_server:2.0.32
Apache » Http Server » Version: 2.0.33

cpe:2.3:a:apache:http_server:2.0.33
Apache » Http Server » Version: 2.0.34

cpe:2.3:a:apache:http_server:2.0.34
Apache » Http Server » Version: 2.0.35

cpe:2.3:a:apache:http_server:2.0.35
Apache » Http Server » Version: 2.0.36

cpe:2.3:a:apache:http_server:2.0.36
Apache » Http Server » Version: 2.0.37

cpe:2.3:a:apache:http_server:2.0.37
Apache » Http Server » Version: 2.0.38

cpe:2.3:a:apache:http_server:2.0.38
Apache » Http Server » Version: 2.0.39

cpe:2.3:a:apache:http_server:2.0.39
Apache » Http Server » Version: 2.0.4

cpe:2.3:a:apache:http_server:2.0.4
Apache » Http Server » Version: 2.0.40

cpe:2.3:a:apache:http_server:2.0.40
Apache » Http Server » Version: 2.0.41

cpe:2.3:a:apache:http_server:2.0.41
Apache » Http Server » Version: 2.0.42

cpe:2.3:a:apache:http_server:2.0.42
Apache » Http Server » Version: 2.0.43

cpe:2.3:a:apache:http_server:2.0.43
Apache » Http Server » Version: 2.0.44

cpe:2.3:a:apache:http_server:2.0.44
Apache » Http Server » Version: 2.0.45

cpe:2.3:a:apache:http_server:2.0.45
Apache » Http Server » Version: 2.0.46

cpe:2.3:a:apache:http_server:2.0.46
Apache » Http Server » Version: 2.0.47

cpe:2.3:a:apache:http_server:2.0.47
Apache » Http Server » Version: 2.0.48

cpe:2.3:a:apache:http_server:2.0.48
Apache » Http Server » Version: 2.0.49

cpe:2.3:a:apache:http_server:2.0.49
Apache » Http Server » Version: 2.0.5

cpe:2.3:a:apache:http_server:2.0.5
Apache » Http Server » Version: 2.0.50

cpe:2.3:a:apache:http_server:2.0.50
Apache » Http Server » Version: 2.0.51

cpe:2.3:a:apache:http_server:2.0.51
Apache » Http Server » Version: 2.0.52

cpe:2.3:a:apache:http_server:2.0.52
Apache » Http Server » Version: 2.0.53

cpe:2.3:a:apache:http_server:2.0.53
Apache » Http Server » Version: 2.0.54

cpe:2.3:a:apache:http_server:2.0.54
Apache » Http Server » Version: 2.0.55

cpe:2.3:a:apache:http_server:2.0.55
Apache » Http Server » Version: 2.0.56

cpe:2.3:a:apache:http_server:2.0.56
Apache » Http Server » Version: 2.0.57

cpe:2.3:a:apache:http_server:2.0.57
Apache » Http Server » Version: 2.0.58

cpe:2.3:a:apache:http_server:2.0.58
Apache » Http Server » Version: 2.0.59

cpe:2.3:a:apache:http_server:2.0.59
Apache » Http Server » Version: 2.0.6

cpe:2.3:a:apache:http_server:2.0.6
Apache » Http Server » Version: 2.0.60

cpe:2.3:a:apache:http_server:2.0.60
Apache » Http Server » Version: 2.0.61

cpe:2.3:a:apache:http_server:2.0.61
Apache » Http Server » Version: 2.0.62

cpe:2.3:a:apache:http_server:2.0.62
Apache » Http Server » Version: 2.0.63

cpe:2.3:a:apache:http_server:2.0.63
Apache » Http Server » Version: 2.0.64

cpe:2.3:a:apache:http_server:2.0.64
Apache » Http Server » Version: 2.0.65

cpe:2.3:a:apache:http_server:2.0.65
Apache » Http Server » Version: 2.0.7

cpe:2.3:a:apache:http_server:2.0.7
Apache » Http Server » Version: 2.0.8

cpe:2.3:a:apache:http_server:2.0.8
Apache » Http Server » Version: 2.0.9

cpe:2.3:a:apache:http_server:2.0.9
Apache » Http Server » Version: 2.1

cpe:2.3:a:apache:http_server:2.1
Apache » Http Server » Version: 2.1.0

cpe:2.3:a:apache:http_server:2.1.0
Apache » Http Server » Version: 2.1.1

cpe:2.3:a:apache:http_server:2.1.1
Apache » Http Server » Version: 2.1.10

cpe:2.3:a:apache:http_server:2.1.10
Apache » Http Server » Version: 2.1.2

cpe:2.3:a:apache:http_server:2.1.2
Apache » Http Server » Version: 2.1.3

cpe:2.3:a:apache:http_server:2.1.3
Apache » Http Server » Version: 2.1.4

cpe:2.3:a:apache:http_server:2.1.4
Apache » Http Server » Version: 2.1.5

cpe:2.3:a:apache:http_server:2.1.5
Apache » Http Server » Version: 2.1.6

cpe:2.3:a:apache:http_server:2.1.6
Apache » Http Server » Version: 2.1.7

cpe:2.3:a:apache:http_server:2.1.7
Apache » Http Server » Version: 2.1.8

cpe:2.3:a:apache:http_server:2.1.8
Apache » Http Server » Version: 2.1.9

cpe:2.3:a:apache:http_server:2.1.9
Apache » Http Server » Version: 2.2

cpe:2.3:a:apache:http_server:2.2
Apache » Http Server » Version: 2.2.0

cpe:2.3:a:apache:http_server:2.2.0
Apache » Http Server » Version: 2.2.1

cpe:2.3:a:apache:http_server:2.2.1
Apache » Http Server » Version: 2.2.10

cpe:2.3:a:apache:http_server:2.2.10
Apache » Http Server » Version: 2.2.11

cpe:2.3:a:apache:http_server:2.2.11
Apache » Http Server » Version: 2.2.12

cpe:2.3:a:apache:http_server:2.2.12
Apache » Http Server » Version: 2.2.13

cpe:2.3:a:apache:http_server:2.2.13
Apache » Http Server » Version: 2.2.14

cpe:2.3:a:apache:http_server:2.2.14
Apache » Http Server » Version: 2.2.15

cpe:2.3:a:apache:http_server:2.2.15
Apache » Http Server » Version: 2.2.15-60

cpe:2.3:a:apache:http_server:2.2.15-60
Apache » Http Server » Version: 2.2.16

cpe:2.3:a:apache:http_server:2.2.16
Apache » Http Server » Version: 2.2.17

cpe:2.3:a:apache:http_server:2.2.17
Apache » Http Server » Version: 2.2.18

cpe:2.3:a:apache:http_server:2.2.18
Apache » Http Server » Version: 2.2.19

cpe:2.3:a:apache:http_server:2.2.19
Apache » Http Server » Version: 2.2.2

cpe:2.3:a:apache:http_server:2.2.2
Apache » Http Server » Version: 2.2.20

cpe:2.3:a:apache:http_server:2.2.20
Apache » Http Server » Version: 2.2.21

cpe:2.3:a:apache:http_server:2.2.21
Apache » Http Server » Version: 2.2.22

cpe:2.3:a:apache:http_server:2.2.22
Apache » Http Server » Version: 2.2.23

cpe:2.3:a:apache:http_server:2.2.23
Apache » Http Server » Version: 2.2.24

cpe:2.3:a:apache:http_server:2.2.24
Apache » Http Server » Version: 2.2.25

cpe:2.3:a:apache:http_server:2.2.25
Apache » Http Server » Version: 2.2.26

cpe:2.3:a:apache:http_server:2.2.26
Apache » Http Server » Version: 2.2.27

cpe:2.3:a:apache:http_server:2.2.27
Apache » Http Server » Version: 2.2.28

cpe:2.3:a:apache:http_server:2.2.28
Apache » Http Server » Version: 2.2.29

cpe:2.3:a:apache:http_server:2.2.29
Apache » Http Server » Version: 2.2.3

cpe:2.3:a:apache:http_server:2.2.3
Apache » Http Server » Version: 2.2.30

cpe:2.3:a:apache:http_server:2.2.30
Apache » Http Server » Version: 2.2.31

cpe:2.3:a:apache:http_server:2.2.31
Apache » Http Server » Version: 2.2.32

cpe:2.3:a:apache:http_server:2.2.32
Apache » Http Server » Version: 2.2.33

cpe:2.3:a:apache:http_server:2.2.33
Apache » Http Server » Version: 2.2.34

cpe:2.3:a:apache:http_server:2.2.34
Apache » Http Server » Version: 2.2.4

cpe:2.3:a:apache:http_server:2.2.4
Apache » Http Server » Version: 2.2.5

cpe:2.3:a:apache:http_server:2.2.5
Apache » Http Server » Version: 2.2.6

cpe:2.3:a:apache:http_server:2.2.6
Apache » Http Server » Version: 2.2.7

cpe:2.3:a:apache:http_server:2.2.7
Apache » Http Server » Version: 2.2.8

cpe:2.3:a:apache:http_server:2.2.8
Apache » Http Server » Version: 2.2.9

cpe:2.3:a:apache:http_server:2.2.9
Apache » Http Server » Version: 2.4.0

cpe:2.3:a:apache:http_server:2.4.0
Apache » Http Server » Version: 2.4.1

cpe:2.3:a:apache:http_server:2.4.1
Apache » Http Server » Version: 2.4.10

cpe:2.3:a:apache:http_server:2.4.10
Apache » Http Server » Version: 2.4.12

cpe:2.3:a:apache:http_server:2.4.12
Apache » Http Server » Version: 2.4.16

cpe:2.3:a:apache:http_server:2.4.16
Apache » Http Server » Version: 2.4.17

cpe:2.3:a:apache:http_server:2.4.17
Apache » Http Server » Version: 2.4.18

cpe:2.3:a:apache:http_server:2.4.18
Apache » Http Server » Version: 2.4.2

cpe:2.3:a:apache:http_server:2.4.2
Apache » Http Server » Version: 2.4.20

cpe:2.3:a:apache:http_server:2.4.20
Apache » Http Server » Version: 2.4.23

cpe:2.3:a:apache:http_server:2.4.23
Apache » Http Server » Version: 2.4.25

cpe:2.3:a:apache:http_server:2.4.25
Apache » Http Server » Version: 2.4.26

cpe:2.3:a:apache:http_server:2.4.26
Apache » Http Server » Version: 2.4.27

cpe:2.3:a:apache:http_server:2.4.27
Apache » Http Server » Version: 2.4.3

cpe:2.3:a:apache:http_server:2.4.3
Apache » Http Server » Version: 2.4.4

cpe:2.3:a:apache:http_server:2.4.4
Apache » Http Server » Version: 2.4.6

cpe:2.3:a:apache:http_server:2.4.6
Apache » Http Server » Version: 2.4.7

cpe:2.3:a:apache:http_server:2.4.7
Apache » Http Server » Version: 2.4.9

cpe:2.3:a:apache:http_server:2.4.9
Debian » Debian Linux » Version: 7.0

cpe:2.3:o:debian:debian_linux:7.0
Debian » Debian Linux » Version: 8.0

cpe:2.3:o:debian:debian_linux:8.0
Debian » Debian Linux » Version: 9.0

cpe:2.3:o:debian:debian_linux:9.0

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Vulnerable Software

Vulnerability Details CVE-2017-9798

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