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CVE-2015-1473

Published: 05 February 2015

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.

Priority

Low

Status

Package Release Status
eglibc
Launchpad, Ubuntu, Debian
Upstream Needed

Ubuntu 14.04 ESM (Trusty Tahr)
Released (2.19-0ubuntu6.6)
glibc
Launchpad, Ubuntu, Debian
Upstream Needed

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://sourceware.org/git/?p=glibc.git;a=commit;h=5bd80bfe9ca0d955bfbbc002781bc7b01b6bcb06

Notes

AuthorNote
tyhicks
Note that the upstream bug #16618 contains the issue of CVE-2015-1472
*and* this CVE
mdeslaur
fixed in same commit as CVE-2015-1472

References

Bugs