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Ubuntu.comUB:CVE-2020-18900

HistoryAug 19, 2021 - 12:00 a.m.

CVE-2020-18900

2021-08-1900:00:00

ubuntu.com

cve-2020-18900

buffer overflow

libexe

libyal

disputed

github

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

31.6%

JSON

DISPUTED A heap-based buffer overflow in the
libexe_io_handle_read_coff_optional_header function of libyal libexe before
20181128. NOTE: the vendor has disputed this as described in libyal/libexe
issue 1 on GitHub.

Notes

Author	Note
sbeattie	libevtx contains an embedded copy of libexe

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibevtx< anyUNKNOWN
ubuntu20.04noarchlibevtx< anyUNKNOWN
ubuntu22.04noarchlibevtx< anyUNKNOWN
ubuntu24.04noarchlibevtx< anyUNKNOWN
ubuntu16.04noarchlibevtx< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	libevtx	< any	UNKNOWN
ubuntu	20.04	noarch	libevtx	< any	UNKNOWN
ubuntu	22.04	noarch	libevtx	< any	UNKNOWN
ubuntu	24.04	noarch	libevtx	< any	UNKNOWN
ubuntu	16.04	noarch	libevtx	< any	UNKNOWN

References

github.com/libyal/libexe/issues/1

launchpad.net/bugs/cve/CVE-2020-18900

nvd.nist.gov/vuln/detail/CVE-2020-18900

security-tracker.debian.org/tracker/CVE-2020-18900

www.cve.org/CVERecord?id=CVE-2020-18900

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

31.6%

JSON

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