CISA KEV 정보
| 취약점명 | GNU C Library Buffer Overflow Vulnerability |
|---|---|
| 설명 | GNU C Library's dynamic loader ld.so contains a buffer overflow vulnerability when processing the GLIBC_TUNABLES environment variable, allowing a local attacker to execute code with elevated privileges. |
| 조치사항 | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
| 랜섬웨어 캠페인 악용 | Unknown |
| CWE | CWE-122 |
| 등록일 (KEV) | 2023-11-21 |
| 조치 기한 | 2023-12-12 |
| 추가 참고 | This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=1056e5b4c3f2d90ed2b4a55f96add28da2f4c8fa, https://access.redhat.com/security/cve/cve-2023-4911, https://www.debian.org/security/2023/dsa-5514 ; https://nvd.nist.gov/vuln/detail/CVE-2023-4911 |
NVD 상세 정보
CVSS v3.1: 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H설명: A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.
CWE: CWE-122 | CWE-787
참조
- https://access.redhat.com/errata/RHSA-2023:5453 [Third Party Advisory]
- https://access.redhat.com/errata/RHSA-2023:5454 [Third Party Advisory]
- https://access.redhat.com/errata/RHSA-2023:5455 [Third Party Advisory]
- https://access.redhat.com/errata/RHSA-2023:5476 [Third Party Advisory]
- https://access.redhat.com/errata/RHSA-2024:0033 [Third Party Advisory]
- https://access.redhat.com/security/cve/CVE-2023-4911 [Third Party Advisory]
- https://bugzilla.redhat.com/show_bug.cgi?id=2238352 [Issue Tracking, Patch]
- https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt [Exploit, Third Party Advisory]
- https://www.qualys.com/cve-2023-4911/ [Third Party Advisory]
- http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html [Exploit, Third Party Advisory, VDB Entry]
- http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html [Exploit, Third Party Advisory, VDB Entry]
- http://seclists.org/fulldisclosure/2023/Oct/11 [Exploit, Mailing List, Third Party Advisory]
- http://www.openwall.com/lists/oss-security/2023/10/03/2 [Exploit, Mailing List]
- http://www.openwall.com/lists/oss-security/2023/10/03/3 [Mailing List]
- http://www.openwall.com/lists/oss-security/2023/10/05/1 [Mailing List]
- ... 외 21건
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