Buffer overflow in GNU Glibc
CVE-2015-1473
The ADDW macro in stdio-common/vfscanf.c in the GNU C Library (aka glibc or libc6) before 2.21 does not properly consider data-type size during a risk-management decision for use of the alloca function, which might allow context-dependent attackers to cause a denial of service (segmentation violation) or overwrite memory locations beyond the stack boundary via a long line containing wide characters that are improperly handled in a wscanf call.
Vulnerability class: Buffer Overflow
EPSS: 0.021 (80.0th percentile) — read the EPSS interpretation.
Affected products
- Gnu Glibc
- Canonical Ubuntu_linux — versions 10.04, 12.04, 14.04
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2015-1473?
- CVE-2015-1473 is a vulnerability in GNU Glibc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2015-04-08.
- Is CVE-2015-1473 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.