PT-2017-2754 · Uclibc+1 · Uclibc+1

Benjin Liu · Published 2017-06-16 · Updated 2017-06-22 · CVE-2017-9728

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions uClibc version 0.9.33.2

Description The issue is related to the get subexp function in the misc/regex/regexec.c file of the uClibc library, which is associated with regular expression processing. Exploitation of this issue may allow a remote attacker to perform an out-of-bounds memory read using a specially crafted regular expression.

Recommendations For uClibc version 0.9.33.2, consider restricting the use of the get subexp function in misc/regex/regexec.c until a patch is available. As a temporary workaround, avoid using crafted regular expressions that may trigger the out-of-bounds read in the get subexp function. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2017-02003

CVE-2017-9728

Affected Products

Debian

Uclibc

References · 6

• https://osv.dev/vulnerability/CVE-2017-9728 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-9728 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-02003 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-9728 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-9728 · Vendor Advisory
• http://openwall.com/lists/oss-security/2017/06/16/4 · Note