Vulnerability in kisli vmime

[ Description ]Official description

VMime through 0.9.2 contains an integer underflow in the uuEncoder::decode function that allows remote attackers to trigger a stack-based buffer overflow via crafted uuencoded MIME parts. Attackers can send an email with a uuencoded line whose length character is 'b' but is not a 'begin' line, corrupting stack memory to crash the application or potentially execute code.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/kisli/vmime
• github.com/kisli/vmime/blob/v0.9.2/src/vmime/utility/encoder/uuEncoder.cpp
• github.com/kisli/vmime/commit/e85925eddc638939f0eeb7ee55ec047d04a760d8
• github.com/kisli/vmime/pull/363
• hackmd.io/@haindpwn/vmime-uuencode-decoder-oob-write
• www.vulncheck.com/advisories/vmime-through-0.9.2-stack-based-buffer-overflow-via-uuenco…