5.3

CVE-2021-28876: fedoraproject fedora

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-28876DEBIAN-CVE-2021-28876
Published 11-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-28876 is a medium (CVSS 5.3) vulnerability in fedoraproject fedora. EPSS estimates a 1.57% chance of exploitation in the next 30 days, higher than 74.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.57%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 3
MGASA-2021-0251RHSA-2021:3042RHSA-2021:3063

Timeline

  1. 11-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

In the standard library in Rust before 1.52.0, the Zip implementation has a panic safety issue. It calls __iterator_get_unchecked() more than once for the same index when the underlying iterator panics (in certain conditions). This bug could lead to a memory safety violation due to an unmet safety requirement for the TrustedRandomAccess trait.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.57%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.57% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.57%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Rust

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • rustc< 1.53.0+dfsg1-1
Fedoraproject1 product
Rust-lang1 product
Ubuntu1 product
  • rustcAll versions (No fix recorded) | < 1.53.0+dfsg1+llvm-4ubuntu1~20.04.1 | < 1.53.0+dfsg1+llvm-4ubuntu1

4 vendors · 4 products

References

10 links