ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics fails, leaking memory each time a crafted TXT file with a texture attribute is processed.
8:7.1.1.43+dfsg1-18:7.1.1.43+dfsg1-1ubuntu18:7.1.1.43+dfsg1-1ubuntu28:7.1.2.3+dfsg1-18:7.1.2.3+dfsg1-1ubuntu0.1Exploitability
AV:NAC:LAT:NPR:NUI:NVulnerable System
VC:NVI:NVA:LSubsequent System
SC:NSI:NSA:NCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N