A flaw has been found in libvips 8.19.0. This vulnerability affects the function vips_unpremultiply_build of the file libvips/conversion/unpremultiply.c. Executing a manipulation of the argument alpha_band can lead to out-of-bounds read.
The attack needs to be launched locally. The exploit has been published and may be used. This patch is called 7215ead1e0cd7d3703cc4f5fca06d7d0f4c22b91.
A patch should be applied to remediate this issue.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 8
https://github.com/libvips/libvips/
cna@vuldb.com
https://github.com/libvips/libvips/commit/7215ead1e0cd7d3703cc4f5fca06d7d0f4c22…
cna@vuldb.com
https://github.com/libvips/libvips/issues/4881
cna@vuldb.com
https://github.com/libvips/libvips/issues/4881#issue-3944216443
cna@vuldb.com
https://github.com/libvips/libvips/pull/4886
cna@vuldb.com
https://vuldb.com/?ctiid.348011
cna@vuldb.com
https://vuldb.com/?id.348011
cna@vuldb.com
https://vuldb.com/?submit.758862
cna@vuldb.com