9.1

CVE-2021-46848: debian debian_linux Off-by-one Error

CVSS: 9.1v3.1CriticalModified
AliasesALPINE-CVE-2021-46848MGASA-2022-0414SUSE-SU-2022:3784-1
Published 24-10-2022Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2021-46848 is a critical (CVSS 9.1) Off-by-one Error vulnerability in debian debian_linux. EPSS estimates a 2.26% chance of exploitation in the next 30 days, higher than 82.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
2.26%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 2 · Related 5
SUSE-SU-2022:3797-1USN-7954-1CGA-97QV-XJXH-WCX8CGA-M2J9-833H-6G48USN-7954-2

Timeline

  1. 24-10-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.

CVSS metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

2.26%

Chance of exploitation in the next 30 days

Percentile

83%

Versus all other CVEs

30-day change

+0.07 pp

From 2.19% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.26%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (gitlab.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Suse32 products
  • libtasn1&distro=SUSE Enterprise Storage 6< 4.13-150000.4.8.1
  • libtasn1&distro=SUSE Enterprise Storage 7< 4.13-150000.4.8.1
  • libtasn1&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS< 4.13-150000.4.8.1
  • libtasn1&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 4.13-150000.4.8.1
  • libtasn1&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS< 4.13-150000.4.8.1
Redhat6 products
  • libtasn1< 0:4.13-4.el8_7 | < 0:4.16.0-8.el9_1 | < 0:4.13-3.el8_6.1
  • libtasn1-debuginfo< 0:4.13-4.el8_7 | < 0:4.16.0-8.el9_1 | < 0:4.13-3.el8_6.1
  • libtasn1-debugsource< 0:4.13-4.el8_7 | < 0:4.16.0-8.el9_1 | < 0:4.13-3.el8_6.1
  • libtasn1-devel< 0:4.13-4.el8_7 | < 0:4.16.0-8.el9_1 | < 0:4.13-3.el8_6.1
  • libtasn1-tools< 0:4.13-4.el8_7 | < 0:4.16.0-8.el9_1 | < 0:4.13-3.el8_6.1
Opensuse3 products
  • libtasn1&distro=openSUSE Leap 15.3< 4.13-150000.4.8.1
  • libtasn1&distro=openSUSE Leap 15.4< 4.13-150000.4.8.1
  • libtasn1&distro=openSUSE Leap Micro 5.2< 4.13-150000.4.8.1
Debian2 products
Alpine1 product
  • libtasn1< 4.17.0-r1 | < 4.18.0-r1 | < 4.19-r0
Chainguard1 product
  • libtasn1All versions (No fix recorded)
Fedoraproject1 product
Gnu1 product
Mageia1 product
  • libtasn1< 4.16.0-4.1.mga8
Ubuntu1 product
  • libtasn1-6< 3.4-3ubuntu0.6+esm1 | < 4.13-2ubuntu0.1~esm1 | < 4.16.0-2ubuntu0.1+esm1 | < 4.18.0-4ubuntu0.2 | < 4.7-3ubuntu0.16.04.3+esm3
Wolfi1 product
  • libtasn1All versions (No fix recorded)

11 vendors · 50 products

References

35 links
Show all 35 references