CVE-2021-32765

Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.
Configurations

Configuration 1 (hide)

cpe:2.3:a:redis:hiredis:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:netapp:management_services_for_element_software_and_netapp_hci:-:*:*:*:*:*:*:*

History

31 Oct 2022, 04:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202210-32 -

28 Nov 2021, 23:18

Type Values Removed Values Added
CWE CWE-680
CPE cpe:2.3:a:netapp:management_services_for_element_software_and_netapp_hci:-:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
References (MLIST) https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html - (MLIST) https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html - Mailing List, Third Party Advisory
References (CONFIRM) https://security.netapp.com/advisory/ntap-20211104-0003/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20211104-0003/ - Third Party Advisory

17 Nov 2021, 22:18

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20211104-0003/ -

10 Nov 2021, 01:17

Type Values Removed Values Added
References
  • {'url': 'https://security.netapp.com/advisory/ntap-20211104-0003/', 'name': 'https://security.netapp.com/advisory/ntap-20211104-0003/', 'tags': [], 'refsource': 'CONFIRM'}

04 Nov 2021, 09:15

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20211104-0003/ -

12 Oct 2021, 13:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html -

07 Oct 2021, 15:43

Type Values Removed Values Added
References (CONFIRM) https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2 - (CONFIRM) https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2 - Mitigation, Third Party Advisory
References (MISC) https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e - (MISC) https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e - Patch, Third Party Advisory
References (MISC) https://wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+calloc%28%29%2C+when+multiplied%2C+do+not+wrap - (MISC) https://wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+calloc%28%29%2C+when+multiplied%2C+do+not+wrap - Third Party Advisory
CPE cpe:2.3:a:redis:hiredis:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : 8.8
v2 : 6.5
v3 : 8.8

04 Oct 2021, 21:15

Type Values Removed Values Added
New CVE

Information

Published : 2021-10-04 21:15

Updated : 2024-02-04 22:08


NVD link : CVE-2021-32765

Mitre link : CVE-2021-32765

CVE.ORG link : CVE-2021-32765


JSON object : View

Products Affected

netapp

  • management_services_for_element_software_and_netapp_hci

debian

  • debian_linux

redis

  • hiredis
CWE
CWE-190

Integer Overflow or Wraparound

CWE-680

Integer Overflow to Buffer Overflow