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RedhatCVE-2020-14315

HistorySep 16, 2020 - 2:15 p.m.

CVE-2020-14315

2020-09-1614:15:12

CWE-787

redhat

web.nvd.nist.gov

cve-2020-14315

memory corruption

bspatch

colin percival

bsdiff tools

vulnerability

nvd

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

AI Score

9.6

Confidence

High

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.

Affected configurations

Nvd

Vulners

Node

daemonologybsdiffMatch4.3

VendorProductVersionCPE
daemonologybsdiff4.3cpe:2.3:a:daemonology:bsdiff:4.3:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
daemonology	bsdiff	4.3	cpe:2.3:a:daemonology:bsdiff:4.3:::::::*

CNA Affected

[
  {
    "product": "bsdiff",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "bsdiff 4.3"
      }
    ]
  }
]

References

bugzilla.redhat.com/show_bug.cgi?id=1856747

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

www.x41-dsec.de/lab/advisories/x41-2020-006-bspatch/

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

AI Score

9.6

Confidence

High

EPSS

0.003

Percentile

71.0%

JSON

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