Integer overflow in NetApp Management Services For Element Software And Hci
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- NetApp Management Services For Element Software And Hci
- Redis Hiredis — versions < 1.0.1
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2 (Third Party Advisory, Mitigation)
- github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e (Patch, Third Party Advisory)
- wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+cal… (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/10/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20211104-0003/ (Third Party Advisory)
- security.gentoo.org/glsa/202210-32 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32765?
- CVE-2021-32765 is a high-severity vulnerability in NetApp Management Services For Element Software And Hci, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2021-10-04.
- How severe is CVE-2021-32765?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-32765 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.