setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.
5:7.0.12-15:7.0.14-15:7.0.14-25:7.0.15-15:7.0.15-1build15:7.0.15-1build25:7.0.15-1ubuntu0.24.04.15:7.0.15-1ubuntu0.24.04.25:7.0.15-1ubuntu0.24.04.35:7.0.15-1ubuntu0.24.04.47.2.11+dfsg1-0ubuntu0.27.3.2+ds-17.3.5+ds-17.3.5+ds-1ubuntu0.17.3.5+ds-1ubuntu0.25:7.0.15-35:7.0.15-3.15:8.0.2-35:8.0.2-3build15:8.0.2-3ubuntu0.25.10.18.1.4+dfsg1-0ubuntu0.27.3.5+ds-17.3.5+ds-1ubuntu0.17.3.6+ds-15:8.0.2-3build15:8.0.2-3ubuntu0.25.10.15:8.0.5-12:2.6.13-12:2.6.16-32:2.8.0-12:2.8.2-12:2.8.4-22:2.8.4-2ubuntu0.22:2.8.4-2ubuntu0.2+esm12:2.8.4-2ubuntu0.2+esm22:2.8.4-2ubuntu0.2+esm32:2.8.4-2ubuntu0.2+esm4+1 more2:3.0.3-32:3.0.5-12:3.0.5-22:3.0.5-32:3.0.5-42:3.0.6-12:3.0.6-1ubuntu0.22:3.0.6-1ubuntu0.32:3.0.6-1ubuntu0.42:3.0.6-1ubuntu0.4+esm1+4 more4:4.0.1-74:4.0.2-64:4.0.2-95:4.0.5-15:4.0.6-15:4.0.6-25:4.0.7-15:4.0.8-15:4.0.8-25:4.0.9-1+8 moreExploitability
AV:AAC:HPR:NUI:NScope
S:UImpact
C:NI:NA:LCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L