PT-2017-13265 · Unrar · Unrar

Salvatore Bonaccorso · Published 2017-09-03 · Updated 2021-10-18 · CVE-2017-14121

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions unrar versions 0.0.1

Description The issue is related to a NULL pointer dereference flaw in the DecodeNumber function, located in the unrarlib.c file. This flaw can be triggered by a crafted RAR archive, potentially leading to a crash or other unintended behavior.

Recommendations For unrar version 0.0.1, consider avoiding the use of the DecodeNumber function until a patch is available. As a temporary workaround, restrict the processing of RAR archives from untrusted sources to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2017-14121

DLA-2567-1

Affected Products

Unrar

References · 14

• https://nvd.nist.gov/vuln/detail/CVE-2017-14121 · Security Note
• https://osv.dev/vulnerability/DLA-2567-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-14121 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-14121 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-14121 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-14121 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-14121 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-14121 · Vendor Advisory
• http://openwall.com/lists/oss-security/2017/08/20/1 · Note
• https://lists.debian.org/debian-lts-announce/2021/02/msg00026.html · Note
• https://t.me/cvenotify/10565 · Telegram Post
• https://t.me/cvenotify/21672 · Telegram Post
• https://bugs.debian.org/874061 · Note
• https://t.me/cvenotify/21671 · Telegram Post