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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:156164
[Eng]
Version
2
Class
patch
ALTXid
361677
Language
Russian
Severity
Critical
Title
Обновление DLA-2695-1 -- устранение уязвимостей в klibc
Description
Several vulnerabilities have been discovered in klibc. Depending on how klibc is used, these could lead to the execution of arbitrary code, privilege escalation, or denial of service. Thanks to Microsoft Vulnerability Research for reporting the heap bugs and going some of the way to identifying the cpio bugs. CVE-2021-31870 Multiplication in the calloc() function may result in an integer overflow and a subsequent heap buffer overflow. CVE-2021-31871 An integer overflow in the cpio command may result in a NULL pointer dereference. CVE-2021-31872 Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact. CVE-2021-31873 Additions in malloc() function may result in integer overflow and subsequent heap buffer overflow.
Family
unix
Platform
Debian 9
Product
klibc
Reference
VENDOR: DLA-2695-1
VENDOR: DLA-2695-1
Id:
DLA-2695-1
Reference:
https://lists.debian.org/debian-lts-announce/2021/debian-lts-announce-202106/msg00025.html
CVE: CVE-2021-31870
CVE: CVE-2021-31870
Id:
CVE-2021-31870
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31870
Comment
: An issue was discovered in klibc before 2.0.9. Multiplication in the calloc() function may result in an integer overflow and a subsequent heap buffer overflow.
CVSSv2 Score:
7.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
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
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
190 (Integer Overflow or Wraparound)
References:
https://kernel.org/pub/linux/libs/klibc/2.0/ (MISC)
https://lists.zytor.com/archives/klibc/2021-April/004593.html (MISC)
https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=292650f04c2b5348b4efbad61fb014ed09b4f3f2 (MISC)
[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9 (MLIST)
[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update (MLIST)
CVE: CVE-2021-31871
CVE: CVE-2021-31871
Id:
CVE-2021-31871
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31871
Comment
: An issue was discovered in klibc before 2.0.9. An integer overflow in the cpio command may result in a NULL pointer dereference on 64-bit systems.
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
190 (Integer Overflow or Wraparound)
References:
https://kernel.org/pub/linux/libs/klibc/2.0/ (MISC)
https://lists.zytor.com/archives/klibc/2021-April/004593.html (MISC)
https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=2e48a12ab1e30d43498c2d53e878a11a1b5102d5 (MISC)
[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9 (MLIST)
[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update (MLIST)
CVE: CVE-2021-31872
CVE: CVE-2021-31872
Id:
CVE-2021-31872
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31872
Comment
: An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact.
CVSSv2 Score:
7.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
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
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
190 (Integer Overflow or Wraparound)
References:
https://kernel.org/pub/linux/libs/klibc/2.0/ (MISC)
https://lists.zytor.com/archives/klibc/2021-April/004593.html (MISC)
https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=9b1c91577aef7f2e72c3aa11a27749160bd278ff (MISC)
[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9 (MLIST)
[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update (MLIST)
CVE: CVE-2021-31873
CVE: CVE-2021-31873
Id:
CVE-2021-31873
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31873
Comment
: An issue was discovered in klibc before 2.0.9. Additions in the malloc() function may result in an integer overflow and a subsequent heap buffer overflow.
CVSSv2 Score:
7.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
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
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
190 (Integer Overflow or Wraparound)
References:
https://kernel.org/pub/linux/libs/klibc/2.0/ (MISC)
https://lists.zytor.com/archives/klibc/2021-April/004593.html (MISC)
https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=a31ae8c508fc8d1bca4f57e9f9f88127572d5202 (MISC)
[oss-security] 20210430 [ANNOUNCE] klibc 2.0.9 (MLIST)
[debian-lts-announce] 20210628 [SECURITY] [DLA 2695-1] klibc security update (MLIST)
https://github.com/huolinjue/klibc/commit/a31ae8c508fc8d1bca4f57e9f9f88127572d5202 ()
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