PT-2021-23311 · Rare Technologies · Bounter

Awen-Li + 1 · Published 2021-12-17 · Updated 2021-12-27 · CVE-2021-41497

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions RaRe-Technologies bounter versions 1.01 through 1.10

Description The issue allows attackers to conduct Denial of Service attacks by inputting a huge width of hash bucket, due to a null pointer reference in CMS Conservative increment obj.

Recommendations For versions 1.01 through 1.10, consider restricting the input width of hash bucket to prevent Denial of Service attacks until a patch is available. As a temporary workaround, consider implementing input validation to limit the width of hash bucket.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-41497

GHSA-74XW-GWFM-7PV7

PYSEC-2021-880

Affected Products

Bounter

References · 9

• 🔥 https://github.com/RaRe-Technologies/bounter/issues/47 · Exploit
• https://osv.dev/vulnerability/GHSA-74xw-gwfm-7pv7 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-41497 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-41497 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-880 · Vendor Advisory
• https://github.com/RaRe-Technologies/bounter · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/bounter/PYSEC-2021-880.yaml · Note
• https://github.com/advisories/GHSA-74xw-gwfm-7pv7 · Note
• https://t.me/cibsecurity/34239 · Telegram Post