PT-2021-6510 · Libelfin+1 · Libelfin+1

Published 2021-08-04 · Updated 2021-08-10 · CVE-2020-24824

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Libelfin version 0.3

Description A global buffer overflow issue in the dwarf::line table::line table function allows attackers to cause a denial of service. The vulnerability is related to unverified input data being copied into a buffer, which can be exploited by a remote attacker to disrupt service.

Recommendations For Libelfin version 0.3, consider disabling the dwarf::line table::line table function as a temporary workaround to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2022-01769

CVE-2020-24824

Affected Products

Debian

Libelfin

References · 11

• 🔥 https://github.com/aclements/libelfin/issues/48 · Exploit
• 🔥❌ https://github.com/xiaoxiongwang/function_bugs/tree/master/libelfin#global-buffer-overflow-in-function-dwarfline_tableline_table-at-dwarflinecc107 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2020-24824 · Security Note
• https://osv.dev/vulnerability/CVE-2020-24824 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-24824 · Security Note
• https://bdu.fstec.ru/vul/2022-01769 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-24824 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-24824 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-24824 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-24824 · Vendor Advisory
• https://t.me/cibsecurity/26803 · Telegram Post