PT-2023-18759 · Bzip2+1 · Bzip2+1

Bjrjk · Published 2023-01-09 · Updated 2025-05-17 · CVE-2023-22895

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 bzip2 crate versions prior to 0.4.4

Description The issue allows attackers to cause a denial of service via a large file that triggers an integer overflow in mem.rs. This can lead to a denial of service (DoS) vector. Both Decompress and Compress implementations can enter into infinite loops given specific payloads that trigger it.

Recommendations For versions prior to 0.4.4, update the bzip2 crate to 0.4.4 to resolve the issue. As a temporary workaround, consider avoiding the use of the crate with untrusted data until the update is applied.

Exploit

Fix

DoS

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2023-22895

GHSA-96JV-R488-C2RJ

OPENSUSE-SU-2024:12610-1

OPENSUSE-SU-2024:12614-1

OPENSUSE-SU-2024:12616-1

OPENSUSE-SU-2025:15094-1

RUSTSEC-2023-0004

Affected Products

Debian

Bzip2

References · 33

• 🔥 https://github.com/alexcrichton/bzip2-rs/pull/86 · Exploit
• https://ubuntu.com/security/CVE-2023-22895 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MI5SVRSGKBWB2JGDLDVIFY5ZQVDZP6I7 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/MI5SVRSGKBWB2JGDLDVIFY5ZQVDZP6I7 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-22895 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/UUK2JO25PPA6XBREKJRBLRCD22LKIOLO · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-22895 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12616-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-22895 · Security Note
• https://crates.io/crates/bzip2/versions · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-22895 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-96jv-r488-c2rj · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SQK57GGXJX3AH7KF6S7S3N7JC5QOYUQ7 · Vendor Advisory
• https://osv.dev/vulnerability/RUSTSEC-2023-0004 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-22895 · Security Note