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

21 Nov 2024, 06:07

Type Values Removed Values Added
References () https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e - Patch, Third Party Advisory () https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e - Patch, Third Party Advisory
References () https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2 - Mitigation, Third Party Advisory () https://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2 - Mitigation, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html - Mailing List, Third Party Advisory
References () https://security.gentoo.org/glsa/202210-32 - Third Party Advisory () https://security.gentoo.org/glsa/202210-32 - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20211104-0003/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20211104-0003/ - Third Party Advisory
References () 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 () 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

Information

Published : 2021-10-04 21:15

Updated : 2024-11-21 06:07


NVD link : CVE-2021-32765

Mitre link : CVE-2021-32765

CVE.ORG link : CVE-2021-32765


JSON object : View

Products Affected

debian

  • debian_linux

redis

  • hiredis

netapp

  • management_services_for_element_software_and_netapp_hci
CWE
CWE-190

Integer Overflow or Wraparound

CWE-680

Integer Overflow to Buffer Overflow