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Ubuntu.comUB:CVE-2020-14315

HistorySep 16, 2020 - 12:00 a.m.

CVE-2020-14315

2020-09-1600:00:00

ubuntu.com

memory corruption

bspatch

bsdiff tools.

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.003

Percentile

71.0%

JSON

A memory corruption vulnerability is present in bspatch as shipped in Colin
Percival’s bsdiff tools version 4.3. Insufficient checks when handling
external inputs allows an attacker to bypass the sanity checks in place and
write out of a dynamically allocated buffer boundaries.

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=964796>

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

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

References

launchpad.net/bugs/cve/CVE-2020-14315

nvd.nist.gov/vuln/detail/CVE-2020-14315

security-tracker.debian.org/tracker/CVE-2020-14315

www.cve.org/CVERecord?id=CVE-2020-14315

www.freebsd.org/security/advisories/FreeBSD-SA-16:29.bspatch.asc

www.openwall.com/lists/oss-security/2020/07/09/2

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.003

Percentile

71.0%

JSON

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